Electric Fields
•
1 like•336 views
Electric fields are regions where electric forces act and are created by charged particles like electrons and protons. The electric field lines emanate from positive charges and point towards negative charges, and the force on a charge in an electric field is proportional to the charge and strength of the field. Particle accelerators are designed to accelerate charged particles to high speeds using electric fields and gain kinetic energy, and are used in devices like TVs and large collider experiments.
Report
Share
Report
Share
![[object Object],[object Object],Gravity force Gravity Field Force is in the direction of the field](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Lecture 1 electromagnetism
Electromagnetism describes the interactions between electric and magnetic fields. Michael Faraday and James Clerk Maxwell first established that changing magnetic fields produce electric currents and changing electric fields produce magnetic fields. Maxwell showed that oscillating electric and magnetic fields propagate as electromagnetic waves, including radio waves, visible light, and others. All electromagnetic waves travel at the speed of light and have characteristics determined by their frequency or wavelength.
Electromagnetism Fundamentals
An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. ... An electromagnet works because an electric current produces a magnetic field. Electromagnetism is produced when an electrical current flows through a simple conductor such as a length of wire or cable, and as current passes along the whole of the conductor then a magnetic field is created along the whole of the conductor.
Electromagnetic induction
Electromagnetic induction occurs when a conductor moves through a magnetic field, producing an induced current. Experiments show that current is induced when a magnet moves toward or away from a coil or wire. The direction of induced current can be determined using Lenz's law. Faraday's law states that the magnitude of induced EMF is directly proportional to the rate of change of magnetic flux. An AC generator produces an alternating current by rotating a coil within a magnetic field.
Cyclotron
The cyclotron is a device that accelerates charged particles using electric and magnetic fields without the need for high voltages. It works by subjecting charged particles like protons to alternating electric fields while maintaining their circular path using a constant perpendicular magnetic field. This causes the particles to gain kinetic energy and travel in an increasingly larger circular trajectory with each pass through the electric field until they exit the cyclotron with energies in the MeV range, useful for applications like medical isotope production and cancer treatment.
ELECTRICITY AND MAGNETISM
Electricity is created by the interaction of positive protons and negative electrons. Electrons are attracted to protons, forming ions, and can move between atoms. Objects become electrically charged through friction, contact with another charged object, or induction, which is the redistribution of electrons. Electrical conductors like metals allow electron movement, while insulators do not. Electrical force follows Coulomb's law and is measured in volts. Electric current is the flow of electric charge through a conductor. Resistance opposes current and is measured in ohms according to Ohm's law. Electrical circuits use a voltage source to power devices by transferring energy.
Electromagnetism..
This document provides an overview of the topic "Electromagnetism" presented by Biniwale Suraj for the 1st year B.E. (C) class at GEC Dahod Mechanical Dept. It covers the following key points in electromagnetism:
1. It introduces electromagnetism and discusses its importance in electrical devices.
2. It reviews the history of discoveries in electromagnetism and Maxwell's unification of electricity and magnetism.
3. It explains electromagnetic concepts such as the magnetic field produced by electric current, Faraday's laws of induction, and induced electromotive force.
4. It also discusses magnetic effects such as the direction
Electric charge
The document discusses the history and properties of electricity and electric charge. It describes how Greeks first discovered the attractive properties of amber in 600 BC and key discoveries throughout history that helped define positive and negative electric charge. The document explains how rubbing certain materials like glass and silk can cause the transfer of electrons, leaving one material with an excess of electrons and the other with a deficit. It summarizes that electric charge is a fundamental property of matter that can be either positive or negative, and like charges repel while opposite charges attract.
5.1 electric fields
1. Electric charge can come from batteries, generators or by rubbing certain materials together. Rubbing materials transfers electrons between them, leaving one with an excess of electrons and a negative charge and the other with a deficiency of electrons and a positive charge.
2. Coulomb's law describes the electric force between two point charges. It states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
3. An electric field is defined as the force per unit charge exerted on a small test charge placed at a point in space. Electric field lines show the direction and strength of the electric field.
Recommended
Lecture 1 electromagnetism
Electromagnetism describes the interactions between electric and magnetic fields. Michael Faraday and James Clerk Maxwell first established that changing magnetic fields produce electric currents and changing electric fields produce magnetic fields. Maxwell showed that oscillating electric and magnetic fields propagate as electromagnetic waves, including radio waves, visible light, and others. All electromagnetic waves travel at the speed of light and have characteristics determined by their frequency or wavelength.
Electromagnetism Fundamentals
An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. ... An electromagnet works because an electric current produces a magnetic field. Electromagnetism is produced when an electrical current flows through a simple conductor such as a length of wire or cable, and as current passes along the whole of the conductor then a magnetic field is created along the whole of the conductor.
Electromagnetic induction
Electromagnetic induction occurs when a conductor moves through a magnetic field, producing an induced current. Experiments show that current is induced when a magnet moves toward or away from a coil or wire. The direction of induced current can be determined using Lenz's law. Faraday's law states that the magnitude of induced EMF is directly proportional to the rate of change of magnetic flux. An AC generator produces an alternating current by rotating a coil within a magnetic field.
Cyclotron
The cyclotron is a device that accelerates charged particles using electric and magnetic fields without the need for high voltages. It works by subjecting charged particles like protons to alternating electric fields while maintaining their circular path using a constant perpendicular magnetic field. This causes the particles to gain kinetic energy and travel in an increasingly larger circular trajectory with each pass through the electric field until they exit the cyclotron with energies in the MeV range, useful for applications like medical isotope production and cancer treatment.
ELECTRICITY AND MAGNETISM
Electricity is created by the interaction of positive protons and negative electrons. Electrons are attracted to protons, forming ions, and can move between atoms. Objects become electrically charged through friction, contact with another charged object, or induction, which is the redistribution of electrons. Electrical conductors like metals allow electron movement, while insulators do not. Electrical force follows Coulomb's law and is measured in volts. Electric current is the flow of electric charge through a conductor. Resistance opposes current and is measured in ohms according to Ohm's law. Electrical circuits use a voltage source to power devices by transferring energy.
Electromagnetism..
This document provides an overview of the topic "Electromagnetism" presented by Biniwale Suraj for the 1st year B.E. (C) class at GEC Dahod Mechanical Dept. It covers the following key points in electromagnetism:
1. It introduces electromagnetism and discusses its importance in electrical devices.
2. It reviews the history of discoveries in electromagnetism and Maxwell's unification of electricity and magnetism.
3. It explains electromagnetic concepts such as the magnetic field produced by electric current, Faraday's laws of induction, and induced electromotive force.
4. It also discusses magnetic effects such as the direction
Electric charge
The document discusses the history and properties of electricity and electric charge. It describes how Greeks first discovered the attractive properties of amber in 600 BC and key discoveries throughout history that helped define positive and negative electric charge. The document explains how rubbing certain materials like glass and silk can cause the transfer of electrons, leaving one material with an excess of electrons and the other with a deficit. It summarizes that electric charge is a fundamental property of matter that can be either positive or negative, and like charges repel while opposite charges attract.
5.1 electric fields
1. Electric charge can come from batteries, generators or by rubbing certain materials together. Rubbing materials transfers electrons between them, leaving one with an excess of electrons and a negative charge and the other with a deficiency of electrons and a positive charge.
2. Coulomb's law describes the electric force between two point charges. It states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
3. An electric field is defined as the force per unit charge exerted on a small test charge placed at a point in space. Electric field lines show the direction and strength of the electric field.
Magnetism and Magnetic Circuits
circuit analysis with device:
The Nature of a Magnetic Field
Ferromagnetic Materials
Electromagnetism
Flux and Flux Density
Magnetic Circuits
Air Gaps, Fringing, and Laminated Cores
etc..
Electromagnetic Induction
This document discusses electromagnetic induction and Faraday's law. It explains that magnetic fields have flux lines that run from the North to South pole of a magnet. The flux Φ is calculated as BA sinθ and represents the strength of the magnetic field times the area it passes through. Faraday's law states that an electromotive force (EMF) is induced in a conductor when it passes through a changing magnetic flux. The EMF is directly proportional to the rate of change of flux linkage over time. For a coil of N turns, the EMF induced is equal to -N * (change in flux linkage over time).
P.p.t for electricity and magnetism
1) Matter is made up of tiny particles called atoms. Atoms contain protons with a positive charge, neutrons with no charge, and electrons with a negative charge.
2) When an object is rubbed against another, like a balloon rubbed on wool, electrons can be transferred, leaving one object with an excess of electrons and a negative charge and the other with a deficit of electrons and a positive charge.
3) Static electricity involves a buildup of electric charge that does not flow, while current electricity involves a flow of charges through a conducting pathway called a circuit that contains a power source and something that uses the power, like a light bulb.
Electro magnetic induction
Electromagnetic induction is the process of using a changing magnetic field to induce voltage in a conductor. It was discovered in 1831 by Michael Faraday, who found that a changing magnetic field can generate an electric current in a nearby wire. Electromagnetic induction underlies many electric technologies like generators, transformers, and induction cooktops. It works through Faraday's law, which states that a time-varying magnetic field produces an induced electromotive force in any nearby conductor.
Physics Investigatory - Electromagnetic Induction. CLASS XII
The document is a student project report on the topic of electromagnetic induction. It includes an introduction discussing electromagnetic induction, theory explaining key concepts like magnetic flux and Lenz's law. It describes Michael Faraday's discovery of induction and his famous experiments. It discusses applications of induction in electrical generators and transformers. It then provides details of Faraday's experiments, the procedure, observations and results which demonstrated that relative motion between a magnet and coil induces current in the coil. The report concludes that a changing magnetic flux induces a voltage across a coil.
Electromagnetic Wave
This document discusses electromagnetic waves and the electromagnetic spectrum. It provides information on the key characteristics of electromagnetic waves including that they do not require a medium, consist of oscillating electric and magnetic fields, and can exhibit properties of both transverse and longitudinal waves. The document also discusses various parts of the electromagnetic spectrum ranging from gamma rays to radio waves and their respective frequency and wavelength ranges. Concepts like wavelength, frequency, speed, intensity, and energy density of electromagnetic waves are defined and their relationships are explained through relevant formulas.
Electric field dd
The document discusses electric field lines and their properties. It provides examples of electric field line patterns for single and multiple point charges of both positive and negative polarity. Key points made include:
- Electric field lines extend radially outward from positive point charges and radially inward towards negative point charges.
- Between two same polarity charges, field lines point from one charge to the other with an absence of lines between. Between opposite charges, lines begin on one and end on the other.
- The number of field lines is proportional to charge magnitude. Higher line density means stronger field. Field direction is tangent to lines.
Electromagnetic Induction Class 12
1. Electromagnetic induction occurs when a changing magnetic flux induces an electromotive force (emf) in a circuit. This was discovered by Faraday through his experiments.
2. Faraday's laws of induction state that an emf is induced in a circuit when the magnetic flux through the circuit changes, and that the magnitude of this induced emf is proportional to the rate of change of the magnetic flux.
3. Lenz's law describes the direction of the induced current: the current will flow in a direction that creates its own magnetic field to oppose the original change in magnetic flux that caused it. This ensures the conservation of energy.
Physics Investigatory Project Class 12
This document appears to be a student project report on investigating the relationship between input/output voltage and number of turns in the primary and secondary coils of a transformer. It includes sections on introduction, theory, apparatus, procedure, observations, conclusion, and bibliography. The key points are that the output voltage of a transformer depends on the ratio of turns in the secondary coil to the primary coil, and that there are losses between the input and output resulting in the transformer's efficiency being less than 100%.
Electromagnetism
This document discusses electromagnetism and several related concepts from physics. It defines electromagnetism as the study of the relationship between electric currents and magnetism. It explains that a current-carrying conductor produces a magnetic field and describes the right hand rule for determining the direction of magnetic fields. It also discusses magnetic fields produced by current-carrying loops and solenoids, as well as the concepts of magnetic flux and electromagnetic induction.
Electromagnetic field (emf)
The document discusses electromagnetic fields (EMF). It begins by defining EMF as a physical field produced by moving electrically charged objects that affects behavior of nearby charged objects. It notes EMF extends indefinitely through space and is one of four fundamental forces. The field combines electric fields from stationary charges and magnetic fields from moving charges. The document then provides examples of uses for electromagnets and discusses electromagnetic induction, transformers, exposure to EMF, and contrasts EMF with gravitational fields.
Two cavity klystron
A Klystron is a vacuum tube that can be used either as a generator or as an amplifier or as an oscillator, at microwave frequencies.The Klystron is a linear beam device; that is, the electron flow is in a straight line focused by an axial magnetic field.
Twta and sspa
SSPA n TWTA have been briefly explained with examples
UIA Malaysia
Syed absar kazmi
Engrabsarkazmi@gmai.com
Electromagnetism
The document provides information about magnetic fields, electromagnetic induction, transformers, and thermal power stations. It defines key concepts like the right hand rule, how transformers work using different coil turns to change voltage, and how thermal power stations use steam turbines powered by burning fossil fuels to generate electricity. Diagrams and examples are included to illustrate these concepts.
Magnetron
The magnetron is a vacuum tube that generates high power microwaves using the interaction between an electron stream and magnetic field. It has a cathode at the center surrounded by cylindrical cavities. A magnetic field is applied perpendicular to the electric field between the cathode and anode. This causes electrons to spiral and induce radio waves in the cavities. The waves are extracted and used in applications like radar, microwave ovens, and lighting. Key advantages are its efficiency and ability to generate a range of frequencies, though the frequency is not precisely controllable.
Electrostatics
Electrostatics covers the properties of electric charges, electrostatic force, and electric fields. Key points include:
- There are two types of electric charges: positive and negative. Like charges repel and unlike charges attract.
- Charge is quantized and conserved. It exists in integer multiples of the fundamental unit, e.
- Coulomb's law describes the electrostatic force between two point charges. The force is proportional to the product of the charges and inversely proportional to the square of the distance between them.
- Electric fields are vector fields that exist around charged objects. The electric field strength is defined as the force per unit charge. Field lines are used to represent electric fields graphically.
physics project on electromagnetic inducion
The document is a student project on electromagnetic induction that was submitted to their physics teacher. It includes an introduction to Faraday's law of induction, a theoretical section explaining concepts like magnetic flux and Lenz's law, and a list of devices that operate using electromagnetic induction principles such as generators, motors, transformers, and wireless chargers.
electromagnetic induction ( part 2 )
1. Self induction is the phenomenon where an induced electromotive force (emf) is generated in a circuit or coil due to a change in the current flowing through it.
2. The property of a coil that enables it to produce an opposing induced emf when the current changes is called self induction.
3. The coefficient of self induction, also called self inductance, is a measure of the amount of self induction and is equal to the magnetic flux linked with the coil when a current of 1 ampere flows through it.
Electromagnetic induction
This document discusses the topic of electromagnetic induction. It begins by describing how an emf is induced by relative motion between a conductor and a magnetic field. It then discusses several key concepts including the direction of induced current, factors that increase induced current, and Faraday's law. It also covers magnetic flux, flux linkage, and Lenz's law. Finally, it discusses AC generators and transformers, including how they work, ideal transformer equations, and their use in power transmission systems.
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.
ELECTRICITY AND MAGNETISM
Electricity can be summarized as follows:
(1) Electricity is the movement of electric charge, which is most commonly carried by electrons or ions. (2) Charged particles experience electric forces and these forces can be attractive or repulsive depending on whether the charges are opposite or the same. (3) Electricity can be generated by several methods including friction, induction, and chemical reactions. Common applications of electricity include powering devices and transmission of information.
Lecture-20.ppt
This document discusses inductance and induced electromotive force (emf). It explains that an induced emf is generated in a conductor when it moves through a magnetic field, and that changing the magnetic flux through a coil can induce an emf. It also states that an induced electric field is produced by a changing magnetic flux according to Faraday's law, and that this induced electric field is what drives the motion of conduction electrons. The document provides examples of inductance, self-inductance, and mutual inductance, and discusses how transformers use inductance to change voltages.
More Related Content
What's hot
Magnetism and Magnetic Circuits
circuit analysis with device:
The Nature of a Magnetic Field
Ferromagnetic Materials
Electromagnetism
Flux and Flux Density
Magnetic Circuits
Air Gaps, Fringing, and Laminated Cores
etc..
Electromagnetic Induction
This document discusses electromagnetic induction and Faraday's law. It explains that magnetic fields have flux lines that run from the North to South pole of a magnet. The flux Φ is calculated as BA sinθ and represents the strength of the magnetic field times the area it passes through. Faraday's law states that an electromotive force (EMF) is induced in a conductor when it passes through a changing magnetic flux. The EMF is directly proportional to the rate of change of flux linkage over time. For a coil of N turns, the EMF induced is equal to -N * (change in flux linkage over time).
P.p.t for electricity and magnetism
1) Matter is made up of tiny particles called atoms. Atoms contain protons with a positive charge, neutrons with no charge, and electrons with a negative charge.
2) When an object is rubbed against another, like a balloon rubbed on wool, electrons can be transferred, leaving one object with an excess of electrons and a negative charge and the other with a deficit of electrons and a positive charge.
3) Static electricity involves a buildup of electric charge that does not flow, while current electricity involves a flow of charges through a conducting pathway called a circuit that contains a power source and something that uses the power, like a light bulb.
Electro magnetic induction
Electromagnetic induction is the process of using a changing magnetic field to induce voltage in a conductor. It was discovered in 1831 by Michael Faraday, who found that a changing magnetic field can generate an electric current in a nearby wire. Electromagnetic induction underlies many electric technologies like generators, transformers, and induction cooktops. It works through Faraday's law, which states that a time-varying magnetic field produces an induced electromotive force in any nearby conductor.
Physics Investigatory - Electromagnetic Induction. CLASS XII
The document is a student project report on the topic of electromagnetic induction. It includes an introduction discussing electromagnetic induction, theory explaining key concepts like magnetic flux and Lenz's law. It describes Michael Faraday's discovery of induction and his famous experiments. It discusses applications of induction in electrical generators and transformers. It then provides details of Faraday's experiments, the procedure, observations and results which demonstrated that relative motion between a magnet and coil induces current in the coil. The report concludes that a changing magnetic flux induces a voltage across a coil.
Electromagnetic Wave
This document discusses electromagnetic waves and the electromagnetic spectrum. It provides information on the key characteristics of electromagnetic waves including that they do not require a medium, consist of oscillating electric and magnetic fields, and can exhibit properties of both transverse and longitudinal waves. The document also discusses various parts of the electromagnetic spectrum ranging from gamma rays to radio waves and their respective frequency and wavelength ranges. Concepts like wavelength, frequency, speed, intensity, and energy density of electromagnetic waves are defined and their relationships are explained through relevant formulas.
Electric field dd
The document discusses electric field lines and their properties. It provides examples of electric field line patterns for single and multiple point charges of both positive and negative polarity. Key points made include:
- Electric field lines extend radially outward from positive point charges and radially inward towards negative point charges.
- Between two same polarity charges, field lines point from one charge to the other with an absence of lines between. Between opposite charges, lines begin on one and end on the other.
- The number of field lines is proportional to charge magnitude. Higher line density means stronger field. Field direction is tangent to lines.
Electromagnetic Induction Class 12
1. Electromagnetic induction occurs when a changing magnetic flux induces an electromotive force (emf) in a circuit. This was discovered by Faraday through his experiments.
2. Faraday's laws of induction state that an emf is induced in a circuit when the magnetic flux through the circuit changes, and that the magnitude of this induced emf is proportional to the rate of change of the magnetic flux.
3. Lenz's law describes the direction of the induced current: the current will flow in a direction that creates its own magnetic field to oppose the original change in magnetic flux that caused it. This ensures the conservation of energy.
Physics Investigatory Project Class 12
This document appears to be a student project report on investigating the relationship between input/output voltage and number of turns in the primary and secondary coils of a transformer. It includes sections on introduction, theory, apparatus, procedure, observations, conclusion, and bibliography. The key points are that the output voltage of a transformer depends on the ratio of turns in the secondary coil to the primary coil, and that there are losses between the input and output resulting in the transformer's efficiency being less than 100%.
Electromagnetism
This document discusses electromagnetism and several related concepts from physics. It defines electromagnetism as the study of the relationship between electric currents and magnetism. It explains that a current-carrying conductor produces a magnetic field and describes the right hand rule for determining the direction of magnetic fields. It also discusses magnetic fields produced by current-carrying loops and solenoids, as well as the concepts of magnetic flux and electromagnetic induction.
Electromagnetic field (emf)
The document discusses electromagnetic fields (EMF). It begins by defining EMF as a physical field produced by moving electrically charged objects that affects behavior of nearby charged objects. It notes EMF extends indefinitely through space and is one of four fundamental forces. The field combines electric fields from stationary charges and magnetic fields from moving charges. The document then provides examples of uses for electromagnets and discusses electromagnetic induction, transformers, exposure to EMF, and contrasts EMF with gravitational fields.
Two cavity klystron
A Klystron is a vacuum tube that can be used either as a generator or as an amplifier or as an oscillator, at microwave frequencies.The Klystron is a linear beam device; that is, the electron flow is in a straight line focused by an axial magnetic field.
Twta and sspa
SSPA n TWTA have been briefly explained with examples
UIA Malaysia
Syed absar kazmi
Engrabsarkazmi@gmai.com
Electromagnetism
The document provides information about magnetic fields, electromagnetic induction, transformers, and thermal power stations. It defines key concepts like the right hand rule, how transformers work using different coil turns to change voltage, and how thermal power stations use steam turbines powered by burning fossil fuels to generate electricity. Diagrams and examples are included to illustrate these concepts.
Magnetron
The magnetron is a vacuum tube that generates high power microwaves using the interaction between an electron stream and magnetic field. It has a cathode at the center surrounded by cylindrical cavities. A magnetic field is applied perpendicular to the electric field between the cathode and anode. This causes electrons to spiral and induce radio waves in the cavities. The waves are extracted and used in applications like radar, microwave ovens, and lighting. Key advantages are its efficiency and ability to generate a range of frequencies, though the frequency is not precisely controllable.
Electrostatics
Electrostatics covers the properties of electric charges, electrostatic force, and electric fields. Key points include:
- There are two types of electric charges: positive and negative. Like charges repel and unlike charges attract.
- Charge is quantized and conserved. It exists in integer multiples of the fundamental unit, e.
- Coulomb's law describes the electrostatic force between two point charges. The force is proportional to the product of the charges and inversely proportional to the square of the distance between them.
- Electric fields are vector fields that exist around charged objects. The electric field strength is defined as the force per unit charge. Field lines are used to represent electric fields graphically.
physics project on electromagnetic inducion
The document is a student project on electromagnetic induction that was submitted to their physics teacher. It includes an introduction to Faraday's law of induction, a theoretical section explaining concepts like magnetic flux and Lenz's law, and a list of devices that operate using electromagnetic induction principles such as generators, motors, transformers, and wireless chargers.
electromagnetic induction ( part 2 )
1. Self induction is the phenomenon where an induced electromotive force (emf) is generated in a circuit or coil due to a change in the current flowing through it.
2. The property of a coil that enables it to produce an opposing induced emf when the current changes is called self induction.
3. The coefficient of self induction, also called self inductance, is a measure of the amount of self induction and is equal to the magnetic flux linked with the coil when a current of 1 ampere flows through it.
Electromagnetic induction
This document discusses the topic of electromagnetic induction. It begins by describing how an emf is induced by relative motion between a conductor and a magnetic field. It then discusses several key concepts including the direction of induced current, factors that increase induced current, and Faraday's law. It also covers magnetic flux, flux linkage, and Lenz's law. Finally, it discusses AC generators and transformers, including how they work, ideal transformer equations, and their use in power transmission systems.
What's hot (19)
Physics Investigatory - Electromagnetic Induction. CLASS XII
Physics Investigatory - Electromagnetic Induction. CLASS XII
Similar to Electric Fields
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.
ELECTRICITY AND MAGNETISM
Electricity can be summarized as follows:
(1) Electricity is the movement of electric charge, which is most commonly carried by electrons or ions. (2) Charged particles experience electric forces and these forces can be attractive or repulsive depending on whether the charges are opposite or the same. (3) Electricity can be generated by several methods including friction, induction, and chemical reactions. Common applications of electricity include powering devices and transmission of information.
Lecture-20.ppt
This document discusses inductance and induced electromotive force (emf). It explains that an induced emf is generated in a conductor when it moves through a magnetic field, and that changing the magnetic flux through a coil can induce an emf. It also states that an induced electric field is produced by a changing magnetic flux according to Faraday's law, and that this induced electric field is what drives the motion of conduction electrons. The document provides examples of inductance, self-inductance, and mutual inductance, and discusses how transformers use inductance to change voltages.
Physics
The document provides an overview of electromagnetism and various concepts in physics such as electric charge, electric fields, electric potential, capacitors, and dielectrics. It discusses key historical discoveries, fundamental laws and equations, and examples of calculating values for different concepts through problem solving.
Lasers & semiconductors 2008 prelim solutions
Electrons and holes are urged towards the junction region when the diode is in forward bias. This results in the reduction of the depletion region, thus allowing a current to flow. When a p-d is applied across a p-n junction diode in the forward bias mode, the width of the depletion layer decreases, allowing charge carriers to flow more easily across the junction. In reverse bias mode, the depletion layer width increases, preventing charge flow and making the diode act as an open switch.
Electricity Alternating Current
Electricity is generated using alternating current (AC) in power plants. AC is generated by rotating a coil within a magnetic field, which induces an electromotive force (EMF) in the coil according to Faraday's law of induction. As the coil rotates, the magnetic flux passing through it changes over time, producing an alternating current whose magnitude and direction change periodically. Power plants use large rotating coils and magnetic fields to generate high voltage AC electricity on a massive scale, which is then transmitted through power lines to homes and businesses.
coulombs-law.ppt
1. Electric charges can be positive or negative, and electric forces cause like charges to repel and unlike charges to attract according to Coulomb's Law.
2. Atoms contain protons with a positive charge and electrons with a negative charge; objects are neutral when they contain equal numbers of protons and electrons.
3. Electric fields are created by electric charges and describe the interaction of electric forces; electric fields can be used to accelerate electrons in devices like x-ray machines and televisions.
4. Capacitors are used to store electric charge and consist of conductive plates separated by an insulator; the amount
5.1
1. Electric potential difference is the difference in electric potential between two points, usually measured in volts. It is the energy transferred when one coulomb of charge passes between the two points.
2. In a circuit, electrons flow from the negative terminal of a battery to the positive terminal. The battery provides an electric potential difference that causes the electrons to drift through the wire, creating an electric current.
3. Resistance is a measure of how difficult it is for charge to flow through a material. Materials with high resistance impede electron flow more than those with low resistance.
Electrical and Magnetic force fileds.pdf
This document provides an overview of electrical and magnetic force fields. It discusses:
1) The electrical force and how it is balanced by quantum mechanics in atoms.
2) Electric and magnetic fields, which are vector fields associated with every point in space.
3) Key characteristics of vector fields including flux and circulation.
4) The laws of electromagnetism, including how electric and magnetic fields interact.
5) Different types of magnetism exhibited by materials, including diamagnetism, paramagnetism, and ferromagnetism in iron. Quantum mechanics is needed to fully understand magnetic effects.
Magnetic force
Here are the key steps to solve this problem:
1) The electron is accelerated through 1 kV, so its kinetic energy is 1 keV = 1/2 * m_e * v^2. Solve for v.
2) In the region between the plates, the electric force F_E = qE and magnetic force F_B = qvB. For straight line motion, these forces must balance so F_E = F_B.
3) Set the two force expressions equal and solve for B.
4) Plug in the given values of q = -e, E = 100 V/20mm, and v calculated in step 1.
5) The required uniform magnetic
Electricity and Magnetism
This document discusses electricity and defines key concepts related to electric current. It defines current as the rate of flow of electric charge and gives its SI unit as the ampere. It describes conventional current as the flow of positive charges and electric current as the flow of negative charges. It also discusses different types of current sources and the effects of electric current, including heating, chemical, and magnetic effects.
Electricity and Magnetism
This document defines electricity and electric current. It explains that electric current is the flow of electric charge and is measured in Amperes. It also discusses different types of current sources like cells, generators, thermo-couples and solar cells. The document then covers several effects of electric current including heating, chemical, and magnetic effects. It explains electromagnetism and how electric currents produce magnetic fields based on experiments by Hans Oersted.
Electricity and magnetism
- Electricity is the flow of charge and is related to magnetism. Charge is measured in coulombs and is conserved.
- Coulomb's law states that the electrical force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
- An electric field is generated by charged particles and time-varying magnetic fields. It represents the force exerted on other electric charges in the space surrounding the charged particle or time-varying field.
ap-physics-b-review-electromagnetism
This document provides an overview and review of topics covered in an AP Physics B test, including electrostatics, electric circuits, and magnetism. Key points covered are Coulomb's law, electric fields, Gauss' law, capacitance, Ohm's law, Kirchhoff's rules, and how moving charges produce magnetic fields. The review is organized into sections on electrostatics, electric potential, dielectrics and capacitors, electric current, DC circuits, and magnetism. Diagrams are provided to illustrate concepts like electric field lines, parallel plate capacitors, and Kirchhoff's rules.
SPW-Unit 5-Electron optics--21-04-21.pdf
An electron beam with a range of velocities enters a region with perpendicular electric and magnetic fields. Electrons with a specific velocity, v, will travel undeflected along the original path. Electrons with velocities slightly higher or lower than v will follow circular paths and be absorbed by the walls. This arrangement is called a velocity filter or selector, and selects a single velocity from the initial distribution. It works by balancing the electric and magnetic forces for electrons with velocity v, so they feel no net force. Slower and faster electrons respectively feel an unbalanced upward or downward force, causing deflection.
Lecture19 electriccharge
Electric charge is a fundamental property of matter that exists in two forms: positive or negative. Like charges repel and unlike charges attract. Charge is quantized and conserved within isolated systems. Conductors readily transmit charges through loosely bound outer electrons, while insulators do not transmit charges at all. Charged objects create electric fields that exert forces on other charges according to Coulomb's law. The electric field is defined as the force felt by a test charge placed at a given point. Field lines depict the direction and strength of the electric field. Within conductors, the electric field is zero and excess charge resides entirely on the surface. The field is strongest at sharp points on conductors.
Electrostatics for m.6
1. Electrostatics is the study of stationary or static electricity and its behavior in and between matter.
2. There are two types of charge - positive and negative - which attract each other but causes like charges to repel. Charge is conserved and cannot be created or destroyed.
3. Conductors allow charge to flow through the transfer of electrons, while insulators bind electrons tightly and do not allow charge distribution.
4. Charging can occur through friction, conduction, or induction. Coulomb's law describes the electrostatic force between two charges, and electric fields are defined as force per unit charge.
Electrostatics for M.6
1. Electrostatics is the study of stationary or static electricity and its behavior in and between objects.
2. There are two types of charge - positive and negative - which attract each other but causes like charges to repel. Charge is conserved and cannot be created or destroyed.
3. Conductors allow charge to flow through them, while insulators do not. Common conductors include metals, and common insulators include wood, plastic and glass.
ELECTROMAGNETISM
Electromagnetism is the production of a magnetic field by an electric current. Oersted discovered the magnetic effect of current in 1820 through an experiment showing a magnetic needle deflecting when a current was passed through a nearby wire. The magnetic field strength increases with increasing current and vice versa. According to Biot-Savart law, the magnetic field produced by a current-carrying conductor depends on the current, distance from the conductor, and angle between the conductor and field point.
JC H2 Physics Summary(Laser, Semiconductor, Electromagnetism & Elecromagnetic...
A summary of 3 JC Physics topics: Laser Semiconductor, Electromagnetism & Elecromagnetic Induction. I made this and I hope it will be beneficial!
Similar to Electric Fields (20)
JC H2 Physics Summary(Laser, Semiconductor, Electromagnetism & Elecromagnetic...
JC H2 Physics Summary(Laser, Semiconductor, Electromagnetism & Elecromagnetic...
Recently uploaded
Mind map of terminologies used in context of Generative AI
Mind map of common terms used in context of Generative AI.
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
ここ3000字までしか入らないけどタイトルの方がたくさん文字入ると思います。
National Security Agency - NSA mobile device best practices
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
20240607 QFM018 Elixir Reading List May 2024
Everything I found interesting about the Elixir programming ecosystem in May 2024
Climate Impact of Software Testing at Nordic Testing Days
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Generative AI Deep Dive: Advancing from Proof of Concept to Production
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
How to Get CNIC Information System with Paksim Ga.pptx
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
Maruthi Prithivirajan, Head of ASEAN & IN Solution Architecture, Neo4j
Get an inside look at the latest Neo4j innovations that enable relationship-driven intelligence at scale. Learn more about the newest cloud integrations and product enhancements that make Neo4j an essential choice for developers building apps with interconnected data and generative AI.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentationsCosa hanno in comune un mattoncino Lego e la backdoor XZ?
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
Large Language Model (LLM) and it’s Geospatial Applications
Large Language Model (LLM) and it’s Geospatial Applications.
Artificial Intelligence for XMLDevelopment
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Securing your Kubernetes cluster_ a step-by-step guide to success !
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Microsoft - Power Platform_G.Aspiotis.pdf
Revolutionizing Application Development
with AI-powered low-code, presentation by George Aspiotis, Sr. Partner Development Manager, Microsoft
Recently uploaded (20)
Mind map of terminologies used in context of Generative AI
Mind map of terminologies used in context of Generative AI
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
National Security Agency - NSA mobile device best practices
National Security Agency - NSA mobile device best practices
A tale of scale & speed: How the US Navy is enabling software delivery from l...
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Monitoring Java Application Security with JDK Tools and JFR Events
Monitoring Java Application Security with JDK Tools and JFR Events
Climate Impact of Software Testing at Nordic Testing Days
Climate Impact of Software Testing at Nordic Testing Days
Generative AI Deep Dive: Advancing from Proof of Concept to Production
Generative AI Deep Dive: Advancing from Proof of Concept to Production
How to Get CNIC Information System with Paksim Ga.pptx
How to Get CNIC Information System with Paksim Ga.pptx
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
GraphSummit Singapore | Neo4j Product Vision & Roadmap - Q2 2024
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AI
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
Large Language Model (LLM) and it’s Geospatial Applications
Large Language Model (LLM) and it’s Geospatial Applications
Securing your Kubernetes cluster_ a step-by-step guide to success !
Securing your Kubernetes cluster_ a step-by-step guide to success !
Electric Fields
- 5. Charged wire in oil. Floating threads show the field
- 12. Gravity Field Electric Field mass m charge +q force F force F h d Energy Changes in Fields
- 15. Kinetic energy gained by the electron is
- 16. LHC Cern circumference = 27 km depth= 100 m
- 17. Proton Tube
- 21. an easier way to measure electric field strength……
- 22. excellence question 5000 V 20 mm Calculate the electron’s energy gain.
- 23. excellence question for 2.7 5000 V 20 mm Calculate the electron’s velocity as it passes through the hole.
- 26. Cathode Ray Tube
- 27. With switch open … With switch closed …
- 28. The downward force is constant so the path of the electron is a parabola