Les 3 electric field_12
•Download as PPTX, PDF•
0 likes•214 views
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The strength of a uniform electric field is calculated as the potential difference across plates over their separation. The radial electric field of a point charge is defined, and its strength calculated using Coulomb's law as force over test charge. Electric potential is defined as the electric potential energy of
Report
Share
Report
Share
Recommended
ELECTRIC FIELD - LESSON 3
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The strength of a uniform electric field is calculated as the potential difference across plates over their separation. The radial electric field of a point charge is defined, and its strength calculated using Coulomb's law as force over test charge. Electric potential is defined as the electric potential energy of
Electric Fields
The document discusses electric fields and electrostatics. It explains that when objects are rubbed together, electrons are transferred causing objects to become charged. It then discusses Coulomb's law which states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. It provides equations for calculating electric field strength, potential, and force experienced by charges in fields.
EQUIPOTENTIAL ENERGY
- An equipotential surface is a surface where all points have the same electric potential. For a point charge, equipotential surfaces are concentric spherical surfaces. For a uniform electric field, equipotential surfaces form planes perpendicular to the field.
- The electric field is always perpendicular to equipotential surfaces. If it is not, work would be required to move a charge along the surface, contradicting the definition.
- Electrostatic potential energy of a system of point charges depends only on the distances between charges. It is equal to the work required to assemble the charges from infinity.
Ppt djy 2011 topic 5.1 electric potential difference sl
The document discusses electric potential difference and electric potential energy. It defines electric potential difference as the work done per unit charge when moving a charge between two points in an electric field. This can also be thought of as the change in electric potential energy per unit charge. Electric potential difference is measured in volts, where 1 volt is equal to 1 joule per coulomb. Examples and practice problems are provided to illustrate these concepts and how to calculate electric potential difference, electric field strength, and changes in electric potential energy.
Electric Field
1. A field is defined as a property of space in which a material object experiences a force. For example, above the earth there is a gravitational field where a mass experiences a downward force.
2. The electric field is a vector field that exists around an electric charge even when no other charges are present. The direction of the electric field points away from a positive charge and towards a negative charge.
3. The electric field strength is defined as the force experienced by a hypothetical positive test charge per unit of charge, located at that point in space.
ELECTRIC FIELD
1) Point charges placed in space create electric fields that exert forces on other charges, either attracting or repelling them.
2) The electric field concept can explain how charges interact at a distance.
3) Coulomb's law describes the electrostatic force between two point charges quantitatively in terms of the charges and their distance.
6.2 - Electric Force and field
Electric fields arise from charged objects and can exert forces on other charged objects. There are two types of electric charge: positive and negative. Electric field lines show the direction that a positive test charge would move due to the electric field. Electric fields are generated by both positive and negative charges, and the strength of the electric field depends on the magnitude of the charges and the distance between them, as described by Coulomb's law. The electric field strength is defined as the force per unit charge exerted by the field on a small test charge placed within it.
9.3 - Electric Potential
The document discusses electric potential and potential energy. Some key points:
1) Electric potential (V) at a point is the work required to move a small positive test charge to that point from infinity without any net external force.
2) Lines of equipotential connect all points of equal electric potential. Charged particles placed at these points will not experience a force or change in potential energy.
3) The electric potential due to a point charge can be calculated using the work done to move a test charge from infinity to that point. Potential increases as distance from the charge decreases.
4) At locations of zero potential, like point P in one example, a field can still exist. A
Recommended
ELECTRIC FIELD - LESSON 3
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The strength of a uniform electric field is calculated as the potential difference across plates over their separation. The radial electric field of a point charge is defined, and its strength calculated using Coulomb's law as force over test charge. Electric potential is defined as the electric potential energy of
Electric Fields
The document discusses electric fields and electrostatics. It explains that when objects are rubbed together, electrons are transferred causing objects to become charged. It then discusses Coulomb's law which states that the force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. It provides equations for calculating electric field strength, potential, and force experienced by charges in fields.
EQUIPOTENTIAL ENERGY
- An equipotential surface is a surface where all points have the same electric potential. For a point charge, equipotential surfaces are concentric spherical surfaces. For a uniform electric field, equipotential surfaces form planes perpendicular to the field.
- The electric field is always perpendicular to equipotential surfaces. If it is not, work would be required to move a charge along the surface, contradicting the definition.
- Electrostatic potential energy of a system of point charges depends only on the distances between charges. It is equal to the work required to assemble the charges from infinity.
Ppt djy 2011 topic 5.1 electric potential difference sl
The document discusses electric potential difference and electric potential energy. It defines electric potential difference as the work done per unit charge when moving a charge between two points in an electric field. This can also be thought of as the change in electric potential energy per unit charge. Electric potential difference is measured in volts, where 1 volt is equal to 1 joule per coulomb. Examples and practice problems are provided to illustrate these concepts and how to calculate electric potential difference, electric field strength, and changes in electric potential energy.
Electric Field
1. A field is defined as a property of space in which a material object experiences a force. For example, above the earth there is a gravitational field where a mass experiences a downward force.
2. The electric field is a vector field that exists around an electric charge even when no other charges are present. The direction of the electric field points away from a positive charge and towards a negative charge.
3. The electric field strength is defined as the force experienced by a hypothetical positive test charge per unit of charge, located at that point in space.
ELECTRIC FIELD
1) Point charges placed in space create electric fields that exert forces on other charges, either attracting or repelling them.
2) The electric field concept can explain how charges interact at a distance.
3) Coulomb's law describes the electrostatic force between two point charges quantitatively in terms of the charges and their distance.
6.2 - Electric Force and field
Electric fields arise from charged objects and can exert forces on other charged objects. There are two types of electric charge: positive and negative. Electric field lines show the direction that a positive test charge would move due to the electric field. Electric fields are generated by both positive and negative charges, and the strength of the electric field depends on the magnitude of the charges and the distance between them, as described by Coulomb's law. The electric field strength is defined as the force per unit charge exerted by the field on a small test charge placed within it.
9.3 - Electric Potential
The document discusses electric potential and potential energy. Some key points:
1) Electric potential (V) at a point is the work required to move a small positive test charge to that point from infinity without any net external force.
2) Lines of equipotential connect all points of equal electric potential. Charged particles placed at these points will not experience a force or change in potential energy.
3) The electric potential due to a point charge can be calculated using the work done to move a test charge from infinity to that point. Potential increases as distance from the charge decreases.
4) At locations of zero potential, like point P in one example, a field can still exist. A
Electric field
- Electric charge is quantized and can only exist in integer multiples of the elementary charge of electrons and protons. Charge is conserved in nuclear decay processes.
- Coulomb's law describes the electric force between two point charges. The electric field is defined as the force per unit charge exerted on a test charge. Gauss's law relates the net electric flux through a closed surface to the enclosed charge.
- The electric field due to symmetric charge distributions like point charges, spherical charge distributions, and charged plates can be calculated using Gauss's law. This allows determining electric fields without calculating the contributions of individual charges.
Electricfields
1. Michael Faraday developed the concept of an electric field as a property of space around a charged object that causes forces on other charged objects. The electric field at a point is defined as the force on a test charge divided by the test charge.
2. Electric field lines represent the direction of the electric field, with closer lines indicating a stronger field. The electric field due to multiple charges is the vector sum of the individual fields.
3. Electric potential difference (voltage) is defined as the change in electric potential energy of a charge divided by the charge, and represents the work required to move a charge between two points against the electric field.
Electrostatics 3
The document discusses several topics in electrostatics including electric potential, potential difference, equipotential surfaces, Gauss's law, and applications of Gauss's law. Gauss's law states that the electric flux through any closed surface is equal to the enclosed charge divided by the permittivity of free space. This relationship can be used to derive Coulomb's law and calculate electric fields due to various charge distributions like line charges, plane sheets of charge, and spherical shells.
Electrostatics
This document provides an overview of electrostatics and electric fields. It discusses frictional electricity, properties of electric charges, Coulomb's law, units of charge, and continuous charge distributions. It also covers electric fields, electric field intensity due to point charges, the superposition principle, electric field lines, electric dipoles, and properties of electric field lines. The key topics covered in 3 sentences or less are: Electrostatic forces arise from the transfer of electrons when two materials are rubbed together. Coulomb's law describes the electrostatic force between point charges, which depends on the product of the charges and inversely on the square of the distance between them. Electric field lines represent the direction and strength of the electric field and eman
Lecture21 potential
Electric potential is defined as the electric potential energy per unit charge. It is measured in volts and represents the work required to move a charge between two points. The electric potential difference between two points is equal to the work needed to move a positive test charge between those points. Equipotential surfaces represent points in space where the electric potential is the same. Electric field lines are always perpendicular to equipotential surfaces.
Electric potential
Okay, let's break this down step-by-step:
1) The electric field E is uniform, so E has a constant magnitude and direction.
2) The path icf consists of two segments: ic and cf.
3) For ic, the displacement is at a 90° angle to E so no work is done along that segment.
4) For cf, the displacement forms a 45° angle with E.
So the key is to integrate E×ds along just the cf segment.
Work and electric potential lecture # physics 2
The document summarizes key concepts about electric potential and electric potential energy. It defines electric potential as the work required per unit charge to move a charge from a reference point to its current position in an electric field. Electric potential energy is defined as stored energy in a charge-field system due to the charges' positions. The document outlines how electric potential and potential energy relate to work, electric fields, and voltage. It also discusses applications of these concepts, including conductors, equipotential surfaces, and the Bohr model of the hydrogen atom.
Electrostatics
This document provides an overview of electrostatics and related concepts in physics. It defines electrostatics as dealing with charges at rest and their properties. Key topics covered include the historical discovery of static electricity, the conservation and quantization of electric charge, electric fields and lines of force, electric dipoles, capacitance, and devices like the Van de Graff generator. Concepts are explained through definitions, diagrams, and mathematical equations.
Electric Force and Field
1) The document discusses electric force and field, explaining that an electric field exists in the space surrounding charged objects and is a property of those charged sources.
2) It provides examples of the magnitude of electric fields in different situations, from household circuits to inside atoms.
3) The electric field due to a point charge is illustrated as radiating uniformly outward or inward from the charge, depending on its sign.
George Cross Electromagnetism Electric Field Lecture27 (2)
Electric field, field of multiple charges, field of continuous charge, parallel plate capacitor, motion of charge in electric field, motion of dipole in field
Electric Potential
The document discusses electric field, potential, and energy. It defines electric potential as the work done to move a unit positive charge from infinity to a point in an electric field. Electric potential is a scalar quantity measured in volts. Equipotentials are regions in space where the electric potential has a constant value, forming equipotential surfaces or lines. Analogies are drawn between electric and gravitational fields, such as both following inverse square laws and having field lines and equipotentials.
Ch19 Electric Potential Energy and Electric Potential
This document provides learning objectives and content about electric potential energy and electric potential. It discusses key concepts such as electric field, electric potential, equipotential surfaces, and capacitors. Specifically, it defines electric potential as electric potential energy per unit charge. It also explains that equipotential surfaces represent positions of equal electric potential and that the electric field is perpendicular to equipotential surfaces. Finally, it introduces capacitors as devices that can store electric potential energy between two conductors, such as the plates of a parallel plate capacitor, and how dielectrics are used to increase a capacitor's capacitance.
Ch18 electric field
This document provides a summary of Chapter 18 from an electricity and electromagnetism textbook. It discusses the origin of electricity from atomic structure and how objects can acquire net electric charges by gaining or losing electrons. It also describes Coulomb's law governing the electrostatic force between two point charges and how concepts like electric fields, field lines, conductors and insulators relate to this fundamental force. Examples are provided for calculating forces and fields from various charge configurations. The chapter concludes with an introduction to Gauss's law relating electric flux to enclosed charge.
Electric Field | Physics
The force felt by a unit positive charge or test charge when it's kept near a charge is called Electric Field. The electric field is also defined as the region which attracts or repels a charge. The electric field is a vector quantity and it denoted by E. Copy the link given below and paste it in new browser window to get more information on Electric Field www.askiitians.com/iit-jee-electrostatics/electric-field/
Electric potential
The document discusses concepts related to electric potential, electric fields, and electric potential energy. It provides examples of calculating electric potential, electric potential energy, and work done by electric forces using mathematical formulas. Students are asked questions to check their understanding of these concepts and solve problems involving electric charge, potential, fields, and energy.
Electric fields
This document provides a summary of Chapter 18 from an electricity and electromagnetism textbook. It discusses the origin of electricity from atomic structure and how objects can acquire net electric charges by gaining or losing electrons. It also describes Coulomb's law governing the electrostatic force between two point charges and how conductors and insulators differ in allowing electric charge to move through them. The chapter further explains electric fields created by charged objects and how electric field lines can map these fields. Key concepts covered include Gauss's law relating electric flux through a surface to the enclosed charge.
Basic Laws of Electrostatics
The document summarizes key concepts in electromagnetic theory including Faraday's law, Ampere's law, and the Biot-Savart law. Faraday's law states that a changing magnetic field induces an electromotive force (emf) in a nearby conductor. Ampere's law relates the magnetic field around a closed loop to the electric current passing through the loop. The Biot-Savart law gives a formula for calculating the magnetic field generated by a steady current at some distance from the conductor. Examples are given of applications of these laws including electric generators, transformers, and magnetic pickups in electric guitars.
Electromagnetic fields:Units and constants
This document discusses the topics of electromagnetic fields and the fundamental units and constants used in electromagnetics. It defines electromagnetics as the study of electric and magnetic phenomena caused by electric charges at rest and in motion. Both positive and negative charges produce electric fields, while moving charges create magnetic fields. It also introduces four fundamental SI units, permeability and permittivity of free space as universal constants, and the velocity of electromagnetic waves in free space.
Electric field
This document discusses static electricity and how objects become electrically charged. It explains that static electricity occurs when charges build up on the surface of materials without moving. When certain materials like polythene and perspex are rubbed with cloth, polythene becomes negatively charged and perspex becomes positively charged due to the transfer of electrons. A balloon sticks to a ceiling when rubbed because the rubbing makes the balloon negatively charged, which causes some of the ceiling's electrons to repel away, leaving it positively charged - allowing the opposite charges of the balloon and ceiling to attract.
Les 3 electric field_12
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The strength of a uniform electric field is calculated as the potential difference across plates over their separation. For a radial electric field produced by a point charge, the field strength is calculated using Coulomb's law as the force over the test charge. Electric potential is defined as the electric
Leson 2 electrostatics_12
This document outlines a lesson plan on Coulomb's law. It will teach students that unlike charges attract and like charges repel, and how to use Coulomb's law (F=kQ1Q2/r^2) to calculate the electrostatic force between two point charges. It will also compare Coulomb's law to Newton's law of gravitation. Students will be assessed on stating Coulomb's law, how force is affected by distance, and solving practice problems.
Electric field-lesson 1
This document discusses static electricity and how objects become electrically charged. It explains that static electricity occurs when charges build up on the surface of materials without moving. When certain materials like polythene and perspex are rubbed with cloth, polythene becomes negatively charged and perspex becomes positively charged due to the transfer of electrons. A balloon sticks to a ceiling when rubbed because the rubbing makes the balloon negatively charged, which causes the wall to become positively charged through induction, so the opposite charges attract.
More Related Content
What's hot
Electric field
- Electric charge is quantized and can only exist in integer multiples of the elementary charge of electrons and protons. Charge is conserved in nuclear decay processes.
- Coulomb's law describes the electric force between two point charges. The electric field is defined as the force per unit charge exerted on a test charge. Gauss's law relates the net electric flux through a closed surface to the enclosed charge.
- The electric field due to symmetric charge distributions like point charges, spherical charge distributions, and charged plates can be calculated using Gauss's law. This allows determining electric fields without calculating the contributions of individual charges.
Electricfields
1. Michael Faraday developed the concept of an electric field as a property of space around a charged object that causes forces on other charged objects. The electric field at a point is defined as the force on a test charge divided by the test charge.
2. Electric field lines represent the direction of the electric field, with closer lines indicating a stronger field. The electric field due to multiple charges is the vector sum of the individual fields.
3. Electric potential difference (voltage) is defined as the change in electric potential energy of a charge divided by the charge, and represents the work required to move a charge between two points against the electric field.
Electrostatics 3
The document discusses several topics in electrostatics including electric potential, potential difference, equipotential surfaces, Gauss's law, and applications of Gauss's law. Gauss's law states that the electric flux through any closed surface is equal to the enclosed charge divided by the permittivity of free space. This relationship can be used to derive Coulomb's law and calculate electric fields due to various charge distributions like line charges, plane sheets of charge, and spherical shells.
Electrostatics
This document provides an overview of electrostatics and electric fields. It discusses frictional electricity, properties of electric charges, Coulomb's law, units of charge, and continuous charge distributions. It also covers electric fields, electric field intensity due to point charges, the superposition principle, electric field lines, electric dipoles, and properties of electric field lines. The key topics covered in 3 sentences or less are: Electrostatic forces arise from the transfer of electrons when two materials are rubbed together. Coulomb's law describes the electrostatic force between point charges, which depends on the product of the charges and inversely on the square of the distance between them. Electric field lines represent the direction and strength of the electric field and eman
Lecture21 potential
Electric potential is defined as the electric potential energy per unit charge. It is measured in volts and represents the work required to move a charge between two points. The electric potential difference between two points is equal to the work needed to move a positive test charge between those points. Equipotential surfaces represent points in space where the electric potential is the same. Electric field lines are always perpendicular to equipotential surfaces.
Electric potential
Okay, let's break this down step-by-step:
1) The electric field E is uniform, so E has a constant magnitude and direction.
2) The path icf consists of two segments: ic and cf.
3) For ic, the displacement is at a 90° angle to E so no work is done along that segment.
4) For cf, the displacement forms a 45° angle with E.
So the key is to integrate E×ds along just the cf segment.
Work and electric potential lecture # physics 2
The document summarizes key concepts about electric potential and electric potential energy. It defines electric potential as the work required per unit charge to move a charge from a reference point to its current position in an electric field. Electric potential energy is defined as stored energy in a charge-field system due to the charges' positions. The document outlines how electric potential and potential energy relate to work, electric fields, and voltage. It also discusses applications of these concepts, including conductors, equipotential surfaces, and the Bohr model of the hydrogen atom.
Electrostatics
This document provides an overview of electrostatics and related concepts in physics. It defines electrostatics as dealing with charges at rest and their properties. Key topics covered include the historical discovery of static electricity, the conservation and quantization of electric charge, electric fields and lines of force, electric dipoles, capacitance, and devices like the Van de Graff generator. Concepts are explained through definitions, diagrams, and mathematical equations.
Electric Force and Field
1) The document discusses electric force and field, explaining that an electric field exists in the space surrounding charged objects and is a property of those charged sources.
2) It provides examples of the magnitude of electric fields in different situations, from household circuits to inside atoms.
3) The electric field due to a point charge is illustrated as radiating uniformly outward or inward from the charge, depending on its sign.
George Cross Electromagnetism Electric Field Lecture27 (2)
Electric field, field of multiple charges, field of continuous charge, parallel plate capacitor, motion of charge in electric field, motion of dipole in field
Electric Potential
The document discusses electric field, potential, and energy. It defines electric potential as the work done to move a unit positive charge from infinity to a point in an electric field. Electric potential is a scalar quantity measured in volts. Equipotentials are regions in space where the electric potential has a constant value, forming equipotential surfaces or lines. Analogies are drawn between electric and gravitational fields, such as both following inverse square laws and having field lines and equipotentials.
Ch19 Electric Potential Energy and Electric Potential
This document provides learning objectives and content about electric potential energy and electric potential. It discusses key concepts such as electric field, electric potential, equipotential surfaces, and capacitors. Specifically, it defines electric potential as electric potential energy per unit charge. It also explains that equipotential surfaces represent positions of equal electric potential and that the electric field is perpendicular to equipotential surfaces. Finally, it introduces capacitors as devices that can store electric potential energy between two conductors, such as the plates of a parallel plate capacitor, and how dielectrics are used to increase a capacitor's capacitance.
Ch18 electric field
This document provides a summary of Chapter 18 from an electricity and electromagnetism textbook. It discusses the origin of electricity from atomic structure and how objects can acquire net electric charges by gaining or losing electrons. It also describes Coulomb's law governing the electrostatic force between two point charges and how concepts like electric fields, field lines, conductors and insulators relate to this fundamental force. Examples are provided for calculating forces and fields from various charge configurations. The chapter concludes with an introduction to Gauss's law relating electric flux to enclosed charge.
Electric Field | Physics
The force felt by a unit positive charge or test charge when it's kept near a charge is called Electric Field. The electric field is also defined as the region which attracts or repels a charge. The electric field is a vector quantity and it denoted by E. Copy the link given below and paste it in new browser window to get more information on Electric Field www.askiitians.com/iit-jee-electrostatics/electric-field/
Electric potential
The document discusses concepts related to electric potential, electric fields, and electric potential energy. It provides examples of calculating electric potential, electric potential energy, and work done by electric forces using mathematical formulas. Students are asked questions to check their understanding of these concepts and solve problems involving electric charge, potential, fields, and energy.
Electric fields
This document provides a summary of Chapter 18 from an electricity and electromagnetism textbook. It discusses the origin of electricity from atomic structure and how objects can acquire net electric charges by gaining or losing electrons. It also describes Coulomb's law governing the electrostatic force between two point charges and how conductors and insulators differ in allowing electric charge to move through them. The chapter further explains electric fields created by charged objects and how electric field lines can map these fields. Key concepts covered include Gauss's law relating electric flux through a surface to the enclosed charge.
Basic Laws of Electrostatics
The document summarizes key concepts in electromagnetic theory including Faraday's law, Ampere's law, and the Biot-Savart law. Faraday's law states that a changing magnetic field induces an electromotive force (emf) in a nearby conductor. Ampere's law relates the magnetic field around a closed loop to the electric current passing through the loop. The Biot-Savart law gives a formula for calculating the magnetic field generated by a steady current at some distance from the conductor. Examples are given of applications of these laws including electric generators, transformers, and magnetic pickups in electric guitars.
Electromagnetic fields:Units and constants
This document discusses the topics of electromagnetic fields and the fundamental units and constants used in electromagnetics. It defines electromagnetics as the study of electric and magnetic phenomena caused by electric charges at rest and in motion. Both positive and negative charges produce electric fields, while moving charges create magnetic fields. It also introduces four fundamental SI units, permeability and permittivity of free space as universal constants, and the velocity of electromagnetic waves in free space.
What's hot (18)
George Cross Electromagnetism Electric Field Lecture27 (2)
George Cross Electromagnetism Electric Field Lecture27 (2)
Ch19 Electric Potential Energy and Electric Potential
Ch19 Electric Potential Energy and Electric Potential
Viewers also liked
Electric field
This document discusses static electricity and how objects become electrically charged. It explains that static electricity occurs when charges build up on the surface of materials without moving. When certain materials like polythene and perspex are rubbed with cloth, polythene becomes negatively charged and perspex becomes positively charged due to the transfer of electrons. A balloon sticks to a ceiling when rubbed because the rubbing makes the balloon negatively charged, which causes some of the ceiling's electrons to repel away, leaving it positively charged - allowing the opposite charges of the balloon and ceiling to attract.
Les 3 electric field_12
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The strength of a uniform electric field is calculated as the potential difference across plates over their separation. For a radial electric field produced by a point charge, the field strength is calculated using Coulomb's law as the force over the test charge. Electric potential is defined as the electric
Leson 2 electrostatics_12
This document outlines a lesson plan on Coulomb's law. It will teach students that unlike charges attract and like charges repel, and how to use Coulomb's law (F=kQ1Q2/r^2) to calculate the electrostatic force between two point charges. It will also compare Coulomb's law to Newton's law of gravitation. Students will be assessed on stating Coulomb's law, how force is affected by distance, and solving practice problems.
Electric field-lesson 1
This document discusses static electricity and how objects become electrically charged. It explains that static electricity occurs when charges build up on the surface of materials without moving. When certain materials like polythene and perspex are rubbed with cloth, polythene becomes negatively charged and perspex becomes positively charged due to the transfer of electrons. A balloon sticks to a ceiling when rubbed because the rubbing makes the balloon negatively charged, which causes the wall to become positively charged through induction, so the opposite charges attract.
Les 4 electro-12
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate in the electric field, they gain kinetic energy equal to the lost electric potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
Les 4 electro-12
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate, they gain kinetic energy equal to the lost potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
CH-MOTION- ,distance,displacement
Motion is defined as a change in position of an object relative to a reference point. The document discusses scalar and vector quantities, with examples such as time and mass being scalar, and force and velocity being vector. It defines distance as the actual length of the path covered by a body, being a scalar, while displacement is the shortest distance between the initial and final positions of the body, making it a vector quantity. The document provides learning objectives and questions to assess understanding of these key concepts of motion.
Les 4 electro-12
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate, they gain kinetic energy equal to the lost potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
ELECTRIC FIELD -LESSON -4
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate, they gain kinetic energy equal to the lost potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
Les 3 electric field_12
The document defines key concepts relating to electric fields and potential. It defines an electric field as the space around a charge where another charge feels a force, and represents electric fields using field lines showing direction and strength. Electric field strength is defined as the force felt by 1 coulomb of charge, and can be calculated as force over charge. A charge placed in a uniform electric field will experience a force in the direction or opposite the field depending on its sign. The electric field strength of a uniform field is the potential difference across plates over their separation. A point charge produces a radial electric field, and its strength can be calculated from Coulomb's law as the force over a test charge. Electric potential is the electric potential energy of a
Les 4 electro-12
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate, they gain kinetic energy equal to the lost potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
Les 2 electro_12
This lesson covers electrostatics and Coulomb's law. Coulomb's law describes the electrostatic force between two point charges and is analogous to Newton's law of gravitation. It states that the electrostatic force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Students will learn to apply Coulomb's law to calculate electrostatic forces and how the force changes with distance between charges. Comparisons are made between Coulomb's law and Newton's law of gravitation.
Electric field lesson 2
This document discusses Coulomb's law for electric force between two point charges. Coulomb's law states that the electric force F between two point charges q1 and q2 is directly proportional to the product of the charges and inversely proportional to the square of the distance r between them. It also compares Coulomb's law to Newton's law of gravitation. The learning objectives, assessments, and homework involve applying Coulomb's law to calculate electric forces between charges and how the force changes with distance.
Les 1 electro_12
Static electricity occurs when charges build up on the surface of materials without flowing. Rubbing certain materials like polythene and perspex generates opposite charges, with polythene becoming negatively charged and perspex positively charged. When a balloon is rubbed and becomes negatively charged, it sticks to the ceiling since the negative charges in the balloon attract the positive charges they induce in the wall through repulsion of electrons.
Simple phenomena of magnetism
1. The document discusses the properties of magnets, including that magnets have poles where magnetism is strongest and attract magnetic substances like iron and nickel. It also discusses the Earth behaving like a bar magnet along its axis.
2. Key topics covered include the history of magnetism using lodestone for navigation, magnetic poles, properties of magnets including attraction and repulsion of poles, and magnetically hard and soft materials.
3. Different types of alloys are discussed, including ferrous alloys containing iron and non-ferrous alloys not containing iron, as well as continuous and final assessment questions.
MOTION- Velocity, Acceleration,graphs
This document discusses speed and velocity. It defines speed as the distance moved per second, which is a scalar quantity measured in m/s. Velocity is defined as the rate of change of displacement, which is a vector quantity also measured in m/s. The document provides examples of calculating speed and velocity from distance and time measurements. It also includes graphs showing displacement and velocity over time to illustrate constant, accelerating, and decelerating motion.
Viewers also liked (16)
Similar to Les 3 electric field_12
Electric Field.pptx
An electric field exists in the space around a charged object. It is defined as the electric force per unit charge. The electric field depends on the charge creating it and the distance from that charge. Electric field lines indicate the direction of the electric field, extending away from positive charges and toward negative charges. The total electric field is the vector sum of the fields from individual charges through superposition.
Physics(sahil).ppt
The document discusses electric fields and their properties. It defines an electric field as a region of space around a charged object where other charges will feel a force. Electric field strength is defined as the force per unit of charge. The electric field due to a point charge is defined by the equation E=kq/r^2, where kq/r^2 gives the field strength and direction away from a positively charged point or towards a negatively charged point. The superposition principle states that the total electric field is the vector sum of the individual fields due to multiple charges. Electric field lines are used to depict electric fields graphically, with closer spacing representing stronger fields.
Electric fields revisited
Electric fields are regions where charged particles experience forces. The strength of an electric field is defined by the force it exerts on a test charge placed within the field and can be calculated using the formula E=F/q, where E is electric field strength, F is the force on the test charge, and q is the charge of the test charge. The direction of the electric field is defined as the direction in which a positive test charge would experience force.
Lecture-8.ppt
The document contains information about an upcoming mid-semester physics test, including the date, time, and location. It also provides checkpoint questions from previous lectures on topics like electric charge distribution and electric potential. Finally, it summarizes key concepts relating to electric potential, including definitions, calculations of potential for single and multiple point charges, and the relationship between potential and electric field.
Lecture-8.ppt
The document contains information about an upcoming mid-semester physics test, including the date, time, and location. It also provides checkpoint questions from previous lectures on topics like electric charge distribution and electric potential. Finally, it summarizes key concepts relating to electric potential, including definitions, calculations of potential for single and multiple point charges, and the relationship between potential and electric field.
electrostatics_2.ppt
This document discusses the concepts of electric fields and electric field intensity. It defines electric field as a region of space around charged particles that exert electrostatic forces on other charges. Electric field intensity is defined as the electrostatic force per unit positive test charge. The electric field due to a point charge is discussed, along with the superposition principle and electric field lines. Electric dipoles are introduced as pairs of equal and opposite charges, with discussions of dipole moment, and the electric field intensity and torque experienced by a dipole in a uniform electric field.
electrostatics_2.ppt
This document discusses the concepts of electric fields and electric field intensity. It defines electric field as a region of space around charged particles that exert electrostatic forces on other charges. Electric field intensity is defined as the electrostatic force per unit positive test charge. The electric field due to a point charge is discussed, along with the superposition principle and electric field lines. Electric dipoles are introduced as pairs of equal and opposite charges, with discussions of dipole moment, and the electric field intensity and torque experienced by dipoles.
Electrostatics 2
*Animated PPT FOR SCHOOL/ Coachings *
Physics , Chemistry , maths , biology
(Improve your teaching style )
*CONTENT*:-
1. ANIMATED THEORY
(COMES ON PRESS KEY ONE BY ONE )
2.MCQ
3. LIVE EXAMPLE
4. ANIMATED IMAGES LIKE
SPRING , CAR ETC
5. ANIMATED
6. CHAPTER WISE QUESTIONS AND SOLUTION WITH ANIMATED IMAGES
7. SEPARATE TOPIC SEPARATE FILES
Live example watch this video
https://youtu.be/PG4LTFUKi1A
https://drive.google.com/folderview?id=1KsUPQfeqPQXQ6y6MzoMl07C89yRYhnQt
*Delivery in 1 min in Google drive*
No any file miss .
* Work with in zoom ,Google neet , *
contact/whatsapp:- 9753223223
electrostatics_2.ppt
This document discusses the concepts of electric fields and electric field intensity. It defines electric field as a region of space around charged particles that exert electrostatic forces on other charges. Electric field intensity is defined as the electrostatic force per unit positive test charge. The electric field due to a point charge is discussed, along with the superposition principle and electric field lines. Electric dipoles are introduced as pairs of equal and opposite charges, with discussions of dipole fields, dipole moments, and the torque and work done on an electric dipole in a uniform electric field.
Electrostatics Class 12- Part 2
This document discusses the concepts of electric fields and electric field intensity. It defines electric field as a region of space around charged particles that exert electrostatic forces on other charges. Electric field intensity is defined as the electrostatic force per unit positive test charge. The electric field due to a point charge is discussed, along with the superposition principle and electric field lines. Electric dipoles are introduced as pairs of equal and opposite charges, with discussions of dipole moment, and the electric field intensity and torque experienced by dipoles.
Physics; presentation electrostat; -harsh kumar;- xii science; -roll no 08
This presentation summarizes key concepts in electrostatics, including:
1. Electrostatics is the study of electrical properties of systems with charges at rest. Charge is a fundamental property that explains electrical behavior and can be positive or negative.
2. Coulomb's law describes the attractive force between two point charges, directly proportional to the product of charges and inversely proportional to the square of the distance between them.
3. Electric field intensity is defined as the force experienced by a unit positive charge at a point in an electric field. Gauss's law relates the electric flux through a closed surface to the net charge enclosed.
electrostatics 2.ppt
This document discusses the concepts of electrostatics including electric field, electric field intensity, electric field due to point charges, the superposition principle, electric lines of force, properties of electric lines of force, electric dipoles, electric field intensity due to dipoles, torque on dipoles, and work done on dipoles. It defines key terms and concepts and provides examples and equations to illustrate electric field and force calculations for various charge configurations including point charges and dipoles.
Class 12th Physics Electrostatics part 2
This document discusses the concepts of electrostatics including electric field, electric field intensity, and electric field lines. It defines electric field as a region around charged particles where other charges will experience a force. Electric field intensity is the force per unit charge on a small test charge. The electric field due to a point charge is defined by the equation E=kq/r^2 and has spherical symmetry. The superposition principle states that the total electric field is the vector sum of the fields due to individual charges. Electric field lines are imaginary lines showing the direction of the electric field. Key properties of electric field lines are also discussed. The document further explains the electric field due to an electric dipole, and the torque and work
electrostatics_2.ppt
This document discusses the concepts of electrostatics including electric field, electric field intensity, and electric field lines. It defines electric field as a region around charged particles where other charges will experience a force. Electric field intensity is the force per unit charge on a test charge in an electric field. An electric field is represented by electric field lines which do not physically exist but show the direction of the field. The document also examines the electric field and field lines due to various charge configurations including point charges, dipoles, and uniform fields. It defines an electric dipole moment and derives expressions for the electric field of a dipole. Finally, it discusses the torque and potential energy of an electric dipole placed in a uniform electric field.
Electrostatics_2.ppt
This document discusses the concepts of electrostatics including electric field, electric field intensity, and electric field lines. It defines electric field as a region around charged particles where other charges will experience a force. Electric field intensity is the force per unit charge on a test charge in an electric field. An electric field is represented by electric field lines which emanate from positive charges and terminate at negative charges. The properties and types of electric field lines for different charge configurations such as point charges, dipoles, and uniform fields are described. The document also covers the electric field and torque experienced by an electric dipole when placed in a uniform electric field.
Electrostatics 2
1. The document discusses electric fields created by point charges and electric dipoles. It defines electric field strength and describes how electric field strength is calculated for point charges and dipoles.
2. Key properties of electric field lines are outlined, including that they emanate from positive charges and terminate at negative charges.
3. Formulas are given for calculating the torque and work done on an electric dipole placed in a uniform electric field. The dipole will experience a torque causing it to rotate into alignment with the field.
physics121_lecture03.ppt
The document describes concepts from a lecture on electric fields, including:
1. The electric field E at a point is defined as the electric force F on a test charge divided by the charge q. Field lines depict the direction and strength of the field.
2. The electric field due to a point charge is directed away from a positive charge and toward a negative charge.
3. The field of a dipole is non-uniform, exerting a torque and giving the dipole a potential energy depending on its orientation in the field.
4. Continuous charge distributions are treated by summing the contributions of small charge elements to the electric field.
physics121_lecture03.ppt
The document describes concepts from a lecture on electric fields, including:
1. The electric field E at a point is defined as the electric force F on a test charge divided by the test charge q. Field lines depict the direction and strength of the electric field.
2. The electric field due to a point charge is directed away from a positive charge and toward a negative charge.
3. The field due to a dipole can be determined by treating it as two point charges. A dipole experiences a torque and potential energy in an external electric field based on its orientation.
Electric field gauss law
Fields are properties of space that describe the forces experienced by objects; the gravitational field and electric field are two examples, with the gravitational field describing the force of gravity and the electric field describing the electrostatic force between electric charges. Both fields have a magnitude and direction, with the direction of the field specifying the direction of the force on a hypothetical positive test charge placed at that point. While the gravitational field depends on mass, the electric field is calculated based on the charge and distance from the source charge.
Similar to Les 3 electric field_12 (20)
Physics; presentation electrostat; -harsh kumar;- xii science; -roll no 08
Physics; presentation electrostat; -harsh kumar;- xii science; -roll no 08
More from sujameryll
Les 1 current and charge_12
Electric current is the rate of flow of electric charge measured in amperes. One ampere is defined as one coulomb of charge passing through a conductor per second. The direction of conventional current is opposite to the actual flow of electrons. Resistance is a measure of how easily charge flows through a material. It is the ratio of potential difference to current. Materials with high resistivity like tungsten filaments have more resistance, while good conductors like copper have less.
Les 2 coulombs law_12
This document discusses Coulomb's law, which describes the electrostatic force of attraction or repulsion between two point charges. Coulomb's law states that the electrostatic force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. The document also compares Coulomb's law to Newton's law of gravitation, providing examples and assessment questions to test understanding of Coulomb's law.
Les 1 static electri_ci_ty_12
Static electricity occurs when charges build up on the surface of materials without flowing. Rubbing certain materials like polythene and perspex generates opposite charges, with polythene becoming negatively charged and perspex positively charged. When a balloon is rubbed and becomes negatively charged, it sticks to the ceiling since the negative charges in the balloon attract the positive charges left in the wall after some electrons are repelled away.
Les 2 motion_11
This document discusses speed, velocity, and projectile motion. It defines speed as the distance moved per second and velocity as measuring the rate of change of displacement, including that speed is a scalar quantity while velocity is a vector quantity. It also explains that a projectile is an object only affected by gravity, causing it to accelerate downward while maintaining its original horizontal velocity, and that the motion of projectiles can be described by resolving the forces into horizontal and vertical components.
Les 1 motion_11
Motion is defined as a change in position of an object relative to a reference point. The document discusses scalar and vector quantities, with examples such as time and mass being scalar, and force and velocity being vector. It defines distance as the actual length of the path covered by a body, being a scalar, while displacement is the shortest distance between the initial and final positions of the body, making it a vector quantity. The document provides learning objectives and questions to assess understanding of these concepts.
ELECTRIC FIELD-LESSON -4
Thermionic emission is the process where heated electrons are emitted from the surface of a cathode. When a potential is applied between the cathode and anode, the emitted electrons are attracted to the anode. As the electrons accelerate, they gain kinetic energy equal to the lost potential energy, following the equation that the gain in kinetic energy equals the loss in electric potential energy.
ELECTRIC FIELD - LESSON 2
This document discusses Coulomb's law for electric force between two point charges. Coulomb's law states that the electric force F between two point charges q1 and q2 is directly proportional to the product of the charges and inversely proportional to the square of the distance r between them. It also compares Coulomb's law to Newton's law of gravitation. The learning objectives, assessments, and homework involve applying Coulomb's law to calculate electric forces between charges and how the force changes with distance.
Lesson 1_electrostatics_12
This document provides an introduction to the basics of electrostatics, including that static electricity occurs when charges build up on the surface of materials without moving, and that rubbing certain materials like polythene and perspex with cloth results in one becoming negatively charged and the other positively charged due to the transfer of electrons. It also explains that a rubbed balloon sticks to the ceiling due to opposite charges attracting, with the balloon becoming negatively charged and repelling electrons in the wall, leaving it positively charged.
More from sujameryll (8)
Recently uploaded
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
How to Manage Your Lost Opportunities in Odoo 17 CRM
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
Assessment and Planning in Educational technology.pptx
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar KanvariaHindi varnamala | hindi alphabet PPT.pdf
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
How to Fix the Import Error in the Odoo 17
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
How to Add Chatter in the odoo 17 ERP Module
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Types of Herbal Cosmetics its standardization.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
DRUGS AND ITS classification slide share
Any substance (other than food) that is used to prevent, diagnose, treat, or relieve symptoms of a
disease or abnormal condition
Introduction to AI for Nonprofits with Tapp Network
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The Diamonds of 2023-2024 in the IGRA collection
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxMohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
Recently uploaded (20)
Azure Interview Questions and Answers PDF By ScholarHat
Azure Interview Questions and Answers PDF By ScholarHat
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Assessment and Planning in Educational technology.pptx
Assessment and Planning in Educational technology.pptx
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...
Pride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School District
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Les 3 electric field_12
- 2. Continous assessment 1.Define an electric field. It is the space around a charge where another charge feels a force. 2.How do you represent an electric field? By electric field lines. The direction of the arrows shows the direction of the field.The spacing between the lines tells us about the strength of the field.
- 3. 3.Define electric field strength (E) . • It is the force felt by 1coulomb of positive charge. • Electric field strength( E ) = Force F)/Charge(Q) E=F/Q or F= QE • Unit is Newton/Coulomb (N/C) or Volt/metre (V/m) • E is a vector
- 4. Force experienced by a charge in an electric field Consider a uniform field of strength E. F= -QE --Q +Q E F=QE If you place a charge +Q in the field ,it will experience a force F=QE in the direction of the field. If you place a charge -Q in the field ,it will experience a force F= - QE in the opposite direction of the field.
- 5. Electric field strength of a uniform electric field Electric Field strength(E)=Potential difference across the plates(V)/seperation between the plates E=V/d ; unit = V/m + + + + - - - - d V E
- 6. Electric field strength of radial Electric field Q +q r F A point charge +Q produces a radial field. A small positive test charge is placed in the field. Using Coulomb’s law the force on the test charge +q is given by F=k Qq/r² El. Field strength is force per unit charge E=F/q = k Qq/r²q E = k Q/r²
- 8. Electric potential • Electric potential at a point is the electric potential energy of a unit positive charge placed at that point • Unit : Joule/ coulomb or volt