This document discusses the magnetic effects of electric current. It begins by describing Oersted's experiment which discovered that electric currents produce magnetic fields. It then provides several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right hand thumb rule. The document continues by defining the Lorentz magnetic force law and Fleming's left hand rule. It also discusses the magnetic fields produced by various current configurations including infinite straight conductors, circular loops, and solenoids using Biot-Savart's law.
1) When an electric current flows through a wire, it produces a magnetic field around the wire. Oersted discovered this through an experiment where a magnetic needle deflected when placed near a current-carrying wire.
2) Several rules describe the direction of magnetic fields produced by currents, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule.
3) Biot-Savart's law quantitatively relates the magnetic field to the current, length, and position. It shows the field depends on the current and is inversely proportional to the distance from the wire.
The document discusses the magnetic effects of electric current. It begins by describing Oersted's experiment which showed a magnetic needle deflecting when placed near a current-carrying wire. It then provides rules for determining the direction of magnetic fields, including Ampere's swimming rule and the right hand thumb rule. Biot-Savart's law is introduced, stating the magnetic field is proportional to the current and inversely proportional to the distance squared. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
The document discusses the magnetic effects of electric current, including:
1) Oersted's experiment showing a current-carrying wire deflects a magnetic needle.
2) Rules for determining the direction of magnetic fields, including Ampere's swimming rule and Maxwell's corkscrew rule.
3) Biot-Savart's law relating the magnetic field to the current, length element, and distance.
4) Expressions for the magnetic field of an infinitely long straight wire, circular loop, and solenoid.
The document discusses the magnetic effects of electric current, including Oersted's experiment showing a magnetic needle deflecting near a current-carrying wire. It introduces several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule. Biot-Savart's law is presented relating the magnetic field to the current, length element, distance, and angle. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
Magnetic Effects Of Current Class 12 Part-1Self-employed
The document discusses the magnetic effects of electric current, including:
1) Oersted's experiment showing a current-carrying wire deflects a magnetic needle.
2) Rules for determining the direction of magnetic fields, including Ampere's swimming rule and Maxwell's corkscrew rule.
3) Biot-Savart's law, which describes the magnetic field created by a current-carrying element as proportional to the current and inversely proportional to the distance.
The document discusses the magnetic effects of electric current. It begins by explaining Oersted's experiment which showed that electric current produces a magnetic field. It then provides several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right hand thumb rule. Biot-Savart's law is introduced to quantify the magnetic field produced by a current-carrying element. Expressions are derived for the magnetic fields produced by an infinitely long straight wire, a circular loop, and a solenoid.
The document discusses the magnetic effects of electric current. It describes Oersted's experiment which showed that a current-carrying wire deflects a nearby compass needle. It then provides rules for determining the direction of magnetic fields, including Ampere's swimming rule and the right hand thumb rule. Biot-Savart's law is introduced, relating the magnetic field to properties of the current. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
magnetic effect of current class 12th physics pptArpit Meena
1) Oersted's experiment showed that an electric current produces a magnetic field, as a compass needle was deflected when placed near a current-carrying wire.
2) There are several rules to determine the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule.
3) Biot-Savart's law quantitatively describes the magnetic field generated by a current-carrying conductor in terms of the current, length of conductor, and distance from the field point. It shows the field depends on the sine of the angle between the current and field point.
1) When an electric current flows through a wire, it produces a magnetic field around the wire. Oersted discovered this through an experiment where a magnetic needle deflected when placed near a current-carrying wire.
2) Several rules describe the direction of magnetic fields produced by currents, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule.
3) Biot-Savart's law quantitatively relates the magnetic field to the current, length, and position. It shows the field depends on the current and is inversely proportional to the distance from the wire.
The document discusses the magnetic effects of electric current. It begins by describing Oersted's experiment which showed a magnetic needle deflecting when placed near a current-carrying wire. It then provides rules for determining the direction of magnetic fields, including Ampere's swimming rule and the right hand thumb rule. Biot-Savart's law is introduced, stating the magnetic field is proportional to the current and inversely proportional to the distance squared. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
The document discusses the magnetic effects of electric current, including:
1) Oersted's experiment showing a current-carrying wire deflects a magnetic needle.
2) Rules for determining the direction of magnetic fields, including Ampere's swimming rule and Maxwell's corkscrew rule.
3) Biot-Savart's law relating the magnetic field to the current, length element, and distance.
4) Expressions for the magnetic field of an infinitely long straight wire, circular loop, and solenoid.
The document discusses the magnetic effects of electric current, including Oersted's experiment showing a magnetic needle deflecting near a current-carrying wire. It introduces several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule. Biot-Savart's law is presented relating the magnetic field to the current, length element, distance, and angle. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
Magnetic Effects Of Current Class 12 Part-1Self-employed
The document discusses the magnetic effects of electric current, including:
1) Oersted's experiment showing a current-carrying wire deflects a magnetic needle.
2) Rules for determining the direction of magnetic fields, including Ampere's swimming rule and Maxwell's corkscrew rule.
3) Biot-Savart's law, which describes the magnetic field created by a current-carrying element as proportional to the current and inversely proportional to the distance.
The document discusses the magnetic effects of electric current. It begins by explaining Oersted's experiment which showed that electric current produces a magnetic field. It then provides several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right hand thumb rule. Biot-Savart's law is introduced to quantify the magnetic field produced by a current-carrying element. Expressions are derived for the magnetic fields produced by an infinitely long straight wire, a circular loop, and a solenoid.
The document discusses the magnetic effects of electric current. It describes Oersted's experiment which showed that a current-carrying wire deflects a nearby compass needle. It then provides rules for determining the direction of magnetic fields, including Ampere's swimming rule and the right hand thumb rule. Biot-Savart's law is introduced, relating the magnetic field to properties of the current. Magnetic field calculations are shown for a straight wire, circular loop, and solenoid carrying current.
magnetic effect of current class 12th physics pptArpit Meena
1) Oersted's experiment showed that an electric current produces a magnetic field, as a compass needle was deflected when placed near a current-carrying wire.
2) There are several rules to determine the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right-hand thumb rule.
3) Biot-Savart's law quantitatively describes the magnetic field generated by a current-carrying conductor in terms of the current, length of conductor, and distance from the field point. It shows the field depends on the sine of the angle between the current and field point.
The document discusses the magnetic effects of electric current. It begins by describing Oersted's experiment which showed that electric current produces a magnetic field. It then provides several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right hand thumb rule. The document goes on to define Biot-Savart's law and describes how to use it to calculate magnetic fields produced by straight wires, circular loops of wire, and solenoids. It also discusses the magnetic force on a current-carrying conductor and the torque experienced by a current-carrying coil in a uniform magnetic field.
Magnetic Effects Of Current Class 12 Part-2Self-employed
The document discusses various topics related to the magnetic effects of electric current:
1. It defines Lorentz force and Fleming's left hand rule for determining the direction of force on a current-carrying conductor in a magnetic field.
2. It describes the forces experienced by moving charges and current-carrying conductors in both uniform electric and magnetic fields.
3. It provides the definition of the ampere based on the forces experienced between two parallel current-carrying conductors.
The document discusses various topics related to the magnetic effects of electric current:
1. It defines Lorentz magnetic force and Fleming's left hand rule for determining the direction of force on a current-carrying conductor in a magnetic field.
2. It describes the forces experienced by parallel current-carrying conductors and defines the ampere based on the forces between two such conductors.
3. It explains how a moving coil galvanometer works, including how torque is produced on a current-carrying coil in a magnetic field and how the galvanometer can be converted into an ammeter or voltmeter.
The document discusses several topics related to magnetic effects of electric currents:
1. Lorentz force law describes the force experienced by a moving charge in a magnetic field. Fleming's left hand rule indicates the direction of this force.
2. Instruments like galvanometers, ammeters, and voltmeters make use of the magnetic force on a current-carrying coil. Galvanometers can be adapted into ammeters using a shunt resistor or voltmeters using a series resistor.
3. Other topics covered include the magnetic field due to parallel currents, torque on a current-carrying coil, cyclotron particle acceleration, and the maximum energy attainable by particles in a cyclotron.
1) The document summarizes key concepts from a physics lecture on magnetic forces and currents, including the right-hand rule.
2) Magnetic forces can act on both moving charges and on currents. A current-carrying loop placed in a magnetic field experiences both forces and torque.
3) The direction of the magnetic field generated by a long straight wire or solenoid is given by the right-hand rule. Using this rule, the magnetic interactions between two current-carrying wires or solenoids can be determined.
1) The document summarizes key concepts from a physics lecture on magnetic forces and currents, including the right-hand rule.
2) Magnetic forces can act on both moving charges and on currents. A current-carrying loop placed in a magnetic field experiences both forces and torque.
3) The direction of the magnetic field generated by a long straight wire or solenoid is given by the right-hand rule.
The document discusses sources of magnetic fields, including the Biot-Savart law which describes the magnetic field from a current-carrying wire. It provides an example of calculating the magnetic field from a long straight wire using the Biot-Savart law. It also discusses the magnetic force between two parallel current-carrying wires and the magnetic field from a circular current loop. Ampere's law relates the line integral of the magnetic field around a closed loop to the current passing through the loop. The document concludes by discussing magnetic materials and their effect on applied magnetic fields.
The document discusses magnetic fields produced by electric currents. It begins by introducing the Biot-Savart law, which describes the magnetic field generated by a straight wire carrying a current. It then examines the magnetic field of a circular current loop, noting that the field depends on the current I, distance R from the loop, and radius a. At large distances R compared to the radius a, the field approximates that of a magnetic dipole with a magnetic dipole moment m proportional to the current I and area A of the loop.
This document discusses current loops and magnetic fields. It begins by examining the forces and torques on square loops of current in uniform magnetic fields. There is no net force, but there is a net torque. Larger loops experience larger torques. The document then introduces the magnetic dipole moment of a current loop and shows that the torque is given by the cross product of the magnetic dipole moment and the magnetic field. It discusses how current loops behave similarly to magnetic dipoles in fields. Applications to MRI and NMR are briefly described. The document concludes by deriving the equation for the magnetic field generated by a moving point charge.
NCERT Solutions for Moving Charges and Magnetism Class 12
Class 12 Physics typically covers the topic of moving charges and magnetism, which is an essential part of electromagnetism.
For more information, visit-www.vavaclasses.com
1. The magnetic field created by a current-carrying wire can be calculated by considering the magnetic field dB created by a small segment of wire dl, and then integrating over the full length of the wire.
2. The direction of the magnetic field B created by a current I in a wire can be determined using the right-hand rule: curl the fingers of the right hand in the direction of the current I, then the thumb points in the direction of B.
3. Magnetic materials can be classified based on how their magnetic dipoles respond to an external magnetic field. Ferromagnetic materials like iron have dipoles that strongly align with an external field, producing a much larger magnetic field than the applied field.
This document discusses the Biot-Savart law and its use in calculating magnetic fields. It begins by describing Biot and Savart's experimental observations which led to the mathematical expression of the Biot-Savart law. It then provides examples of using the law to calculate the magnetic field of a circular current loop and an ideal solenoid. For the solenoid, Ampere's law is used to derive an expression showing the interior magnetic field is directly proportional to the current and number of turns per unit length.
The document discusses the force experienced by a current-carrying conductor moving through a uniform magnetic field. It provides the key factors that affect the magnitude of the magnetic force, including that it is directly proportional to the current, length of the conductor in the magnetic field, strength of the magnetic field, and the sine of the angle between the conductor and the field. It then presents the equation for the magnetic force in SI units as F = ILB sinα. Special cases for angles of 0° and 90° are also discussed.
1) The Biot-Savart law describes the magnetic field generated by a current-carrying conductor. It states that the magnetic field is proportional to the current and inversely proportional to the distance from the current element.
2) The direction of the magnetic field generated by a current element is perpendicular to both the current element and the line from the current element to the point where the magnetic field is calculated.
3) Examples of applying the Biot-Savart law include calculating the magnetic field generated by a circular loop of wire and along the axis of a solenoid. The magnetic fields add linearly for multiple current elements.
1) Magnets have north and south poles that attract or repel each other depending on their orientation, similar to electric charges. The magnetic force follows a law analogous to Newton's law of gravity and Coulomb's law for electricity.
2) If a magnet is broken in half, each new piece becomes a smaller magnet with its own north and south poles, rather than separating the original poles.
3) Passing an electric current through a coil of wire or loop creates a magnetic field. The direction and strength of the magnetic field can be determined using the right hand rule.
1) Electromagnetic induction occurs when the magnetic flux through a circuit changes, inducing an emf and current based on Faraday's laws.
2) Lenz's law states that the direction of induced current will oppose the change producing it, in accordance with the law of conservation of energy.
3) The magnitude of induced emf is proportional to the rate of change of magnetic flux through the circuit according to Faraday's second law. Induced emf can be produced by changing the magnetic field strength, area of the coil, or relative orientation between the coil and magnetic field.
1) Ampere's circuital law states that the line integral of the magnetic field B around any closed path is equal to the permeability of free space times the total current passing through the enclosed area.
2) The law can be used to calculate magnetic fields due to various current carrying conductors like long straight wires, solenoids, and toroids.
3) For a long straight wire, the magnetic field at a distance r is given by B=μ0I/2πr. For a solenoid, the magnetic field inside is uniform and given by B=μ0nI, where n is number of turns per unit length. For a toroid, the magnetic field within is also
[L2 Sambhav] Electro magnetic induction.pdfSaptakPaul
1. The document provides information about various coaching institutes for JEE preparation with their prices and enrollment details.
2. Yalgaar Reloaded, Yoddha Reloaded and Udaan Plus are listed as options for JEE 2025 and 2024 batches with prices ranging from Rs. 12,824 to Rs. 26,999.
3. Dropper courses are also listed for JEE 2024 with prices starting from Rs. 13,299.
1. A cyclotron uses a magnetic field to accelerate charged particles in a circular path between two "dees". As the particles accelerate, their frequency is synchronized with an oscillator to maintain resonance.
2. Ampere's Circuital Law states that the line integral of magnetic field B around any closed loop equals the permeability constant μ0 times the current passing through the enclosed area.
3. The magnetic field at the center of a straight solenoid is directly proportional to the number of turns per unit length and the current, according to the formula B=μ0nI.
The document discusses the magnetic effects of electric current. It begins by describing Oersted's experiment which showed that electric current produces a magnetic field. It then provides several rules for determining the direction of magnetic fields, including Ampere's swimming rule, Maxwell's corkscrew rule, and the right hand thumb rule. The document goes on to define Biot-Savart's law and describes how to use it to calculate magnetic fields produced by straight wires, circular loops of wire, and solenoids. It also discusses the magnetic force on a current-carrying conductor and the torque experienced by a current-carrying coil in a uniform magnetic field.
Magnetic Effects Of Current Class 12 Part-2Self-employed
The document discusses various topics related to the magnetic effects of electric current:
1. It defines Lorentz force and Fleming's left hand rule for determining the direction of force on a current-carrying conductor in a magnetic field.
2. It describes the forces experienced by moving charges and current-carrying conductors in both uniform electric and magnetic fields.
3. It provides the definition of the ampere based on the forces experienced between two parallel current-carrying conductors.
The document discusses various topics related to the magnetic effects of electric current:
1. It defines Lorentz magnetic force and Fleming's left hand rule for determining the direction of force on a current-carrying conductor in a magnetic field.
2. It describes the forces experienced by parallel current-carrying conductors and defines the ampere based on the forces between two such conductors.
3. It explains how a moving coil galvanometer works, including how torque is produced on a current-carrying coil in a magnetic field and how the galvanometer can be converted into an ammeter or voltmeter.
The document discusses several topics related to magnetic effects of electric currents:
1. Lorentz force law describes the force experienced by a moving charge in a magnetic field. Fleming's left hand rule indicates the direction of this force.
2. Instruments like galvanometers, ammeters, and voltmeters make use of the magnetic force on a current-carrying coil. Galvanometers can be adapted into ammeters using a shunt resistor or voltmeters using a series resistor.
3. Other topics covered include the magnetic field due to parallel currents, torque on a current-carrying coil, cyclotron particle acceleration, and the maximum energy attainable by particles in a cyclotron.
1) The document summarizes key concepts from a physics lecture on magnetic forces and currents, including the right-hand rule.
2) Magnetic forces can act on both moving charges and on currents. A current-carrying loop placed in a magnetic field experiences both forces and torque.
3) The direction of the magnetic field generated by a long straight wire or solenoid is given by the right-hand rule. Using this rule, the magnetic interactions between two current-carrying wires or solenoids can be determined.
1) The document summarizes key concepts from a physics lecture on magnetic forces and currents, including the right-hand rule.
2) Magnetic forces can act on both moving charges and on currents. A current-carrying loop placed in a magnetic field experiences both forces and torque.
3) The direction of the magnetic field generated by a long straight wire or solenoid is given by the right-hand rule.
The document discusses sources of magnetic fields, including the Biot-Savart law which describes the magnetic field from a current-carrying wire. It provides an example of calculating the magnetic field from a long straight wire using the Biot-Savart law. It also discusses the magnetic force between two parallel current-carrying wires and the magnetic field from a circular current loop. Ampere's law relates the line integral of the magnetic field around a closed loop to the current passing through the loop. The document concludes by discussing magnetic materials and their effect on applied magnetic fields.
The document discusses magnetic fields produced by electric currents. It begins by introducing the Biot-Savart law, which describes the magnetic field generated by a straight wire carrying a current. It then examines the magnetic field of a circular current loop, noting that the field depends on the current I, distance R from the loop, and radius a. At large distances R compared to the radius a, the field approximates that of a magnetic dipole with a magnetic dipole moment m proportional to the current I and area A of the loop.
This document discusses current loops and magnetic fields. It begins by examining the forces and torques on square loops of current in uniform magnetic fields. There is no net force, but there is a net torque. Larger loops experience larger torques. The document then introduces the magnetic dipole moment of a current loop and shows that the torque is given by the cross product of the magnetic dipole moment and the magnetic field. It discusses how current loops behave similarly to magnetic dipoles in fields. Applications to MRI and NMR are briefly described. The document concludes by deriving the equation for the magnetic field generated by a moving point charge.
NCERT Solutions for Moving Charges and Magnetism Class 12
Class 12 Physics typically covers the topic of moving charges and magnetism, which is an essential part of electromagnetism.
For more information, visit-www.vavaclasses.com
1. The magnetic field created by a current-carrying wire can be calculated by considering the magnetic field dB created by a small segment of wire dl, and then integrating over the full length of the wire.
2. The direction of the magnetic field B created by a current I in a wire can be determined using the right-hand rule: curl the fingers of the right hand in the direction of the current I, then the thumb points in the direction of B.
3. Magnetic materials can be classified based on how their magnetic dipoles respond to an external magnetic field. Ferromagnetic materials like iron have dipoles that strongly align with an external field, producing a much larger magnetic field than the applied field.
This document discusses the Biot-Savart law and its use in calculating magnetic fields. It begins by describing Biot and Savart's experimental observations which led to the mathematical expression of the Biot-Savart law. It then provides examples of using the law to calculate the magnetic field of a circular current loop and an ideal solenoid. For the solenoid, Ampere's law is used to derive an expression showing the interior magnetic field is directly proportional to the current and number of turns per unit length.
The document discusses the force experienced by a current-carrying conductor moving through a uniform magnetic field. It provides the key factors that affect the magnitude of the magnetic force, including that it is directly proportional to the current, length of the conductor in the magnetic field, strength of the magnetic field, and the sine of the angle between the conductor and the field. It then presents the equation for the magnetic force in SI units as F = ILB sinα. Special cases for angles of 0° and 90° are also discussed.
1) The Biot-Savart law describes the magnetic field generated by a current-carrying conductor. It states that the magnetic field is proportional to the current and inversely proportional to the distance from the current element.
2) The direction of the magnetic field generated by a current element is perpendicular to both the current element and the line from the current element to the point where the magnetic field is calculated.
3) Examples of applying the Biot-Savart law include calculating the magnetic field generated by a circular loop of wire and along the axis of a solenoid. The magnetic fields add linearly for multiple current elements.
1) Magnets have north and south poles that attract or repel each other depending on their orientation, similar to electric charges. The magnetic force follows a law analogous to Newton's law of gravity and Coulomb's law for electricity.
2) If a magnet is broken in half, each new piece becomes a smaller magnet with its own north and south poles, rather than separating the original poles.
3) Passing an electric current through a coil of wire or loop creates a magnetic field. The direction and strength of the magnetic field can be determined using the right hand rule.
1) Electromagnetic induction occurs when the magnetic flux through a circuit changes, inducing an emf and current based on Faraday's laws.
2) Lenz's law states that the direction of induced current will oppose the change producing it, in accordance with the law of conservation of energy.
3) The magnitude of induced emf is proportional to the rate of change of magnetic flux through the circuit according to Faraday's second law. Induced emf can be produced by changing the magnetic field strength, area of the coil, or relative orientation between the coil and magnetic field.
1) Ampere's circuital law states that the line integral of the magnetic field B around any closed path is equal to the permeability of free space times the total current passing through the enclosed area.
2) The law can be used to calculate magnetic fields due to various current carrying conductors like long straight wires, solenoids, and toroids.
3) For a long straight wire, the magnetic field at a distance r is given by B=μ0I/2πr. For a solenoid, the magnetic field inside is uniform and given by B=μ0nI, where n is number of turns per unit length. For a toroid, the magnetic field within is also
[L2 Sambhav] Electro magnetic induction.pdfSaptakPaul
1. The document provides information about various coaching institutes for JEE preparation with their prices and enrollment details.
2. Yalgaar Reloaded, Yoddha Reloaded and Udaan Plus are listed as options for JEE 2025 and 2024 batches with prices ranging from Rs. 12,824 to Rs. 26,999.
3. Dropper courses are also listed for JEE 2024 with prices starting from Rs. 13,299.
1. A cyclotron uses a magnetic field to accelerate charged particles in a circular path between two "dees". As the particles accelerate, their frequency is synchronized with an oscillator to maintain resonance.
2. Ampere's Circuital Law states that the line integral of magnetic field B around any closed loop equals the permeability constant μ0 times the current passing through the enclosed area.
3. The magnetic field at the center of a straight solenoid is directly proportional to the number of turns per unit length and the current, according to the formula B=μ0nI.
Similar to 1_magnetic_effect_of_current_1.ppt (20)
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.pptHenry Hollis
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPRAHUL
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
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
This presentation was provided by Rebecca Benner, Ph.D., of the American Society of Anesthesiologists, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.
Leveraging Generative AI to Drive Nonprofit InnovationTechSoup
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
1. MAGNETIC EFFECT OF CURRENT - I
1. Magnetic Effect of Current – Oersted’s Experiment
2. Ampere’s Swimming Rule
3. Maxwell’s Cork Screw Rule
4. Right Hand Thumb Rule
5. Biot – Savart’s Law
6. Magnetic Field due to Infinitely Long Straight Current –
carrying Conductor
7. Magnetic Field due to a Circular Loop carrying current
8. Magnetic Field due to a Solenoid
Created by C. Mani, Principal, K V No.1, AFS, Jalahalli West, Bangalore
2.
3. N
Magnetic Effect of Current:
An electric current (i.e. flow of electric charge) produces magnetic effect in
the space around the conductor called strength of Magnetic field or simply
Magnetic field.
Oersted’s Experiment:
When current was allowed to flow through a
wire placed parallel to the axis of a magnetic
needle kept directly below the wire, the needle
was found to deflect from its normal position.
E
K
I
N
E
When current was reversed through the wire,
the needle was found to deflect in the
opposite direction to the earlier case.
K
I
4. B
B
Rules to determine the direction of magnetic field:
Ampere’s Swimming Rule or
SNOW Rule:
Imagining a man who swims in the
direction of current from south to north
facing a magnetic needle kept under
him such that current enters his feet
then the North pole of the needle will
deflect towards his left hand, i.e.
towards West.
Maxwell’s Cork Screw Rule or Right
Hand Screw Rule:
If the forward motion of an imaginary
right handed screw is in the direction of
the current through a linear conductor,
then the direction of rotation of the
screw gives the direction of the
magnetic lines of force around the
conductor.
S
I
I I
5.
6.
7.
8. Lorentz Magnetic Force:
A current carrying conductor placed in a magnetic field experiences a force
which means that a moving charge in a magnetic field experiences force.
Fm = q (v x B)
+
q B
v
F
I
θ
-
q
B
v
F
θ
Fm = (q v B sin θ) n
where θ is the angle between v and B
Special Cases:
i) If the charge is at rest, i.e. v = 0, then Fm = 0.
So, a stationary charge in a magnetic field does
not experience any force.
ii) If θ = 0° or 180° i.e. if the charge moves parallel
or anti-parallel to the direction of the magnetic
field, then Fm = 0.
iii) If θ = 90° i.e. if the charge moves perpendicular
to the magnetic field, then the force is
maximum. Fm (max) = q v B
or
I
9. Fleming’s Left Hand Rule:
Force
(F)
Magnetic
Field
(B)
Electric
Current
(I)
If the central finger, fore finger and thumb
of left hand are stretched mutually
perpendicular to each other and the
central finger points to current, fore
finger points to magnetic field, then
thumb points in the direction of motion
(force) on the current carrying conductor.
TIP:
Remember the phrase ‘e m f’ to represent electric current, magnetic
field and force in anticlockwise direction of the fingers of left hand.
Force on a moving charge in uniform Electric and Magnetic
Fields:
When a charge q moves with velocity v in region in which both electric
field E and magnetic field B exist, then the Lorentz force is
F = qE + q (v x B) or F = q (E + v x B)
10. x
Right Hand Thumb Rule or Curl Rule:
If a current carrying conductor is imagined to be
held in the right hand such that the thumb points
in the direction of the current, then the tips of the
fingers encircling the conductor will give the
direction of the magnetic lines of force.
I
Biot – Savart’s Law:
The strength of magnetic field dB due to a small
current element dl carrying a current I at a point
P distant r from the element is directly
proportional to I, dl, sin θ and inversely
proportional to the square of the distance (r2)
where θ is the angle between dl and r.
θ
P
dl
r
i) dB α I
ii) dB α dl
iii) dB α sin θ
iv) dB α 1 / r2
dB α
I dl sin θ
r2
dB =
μ0 I dl sin θ
4π r2
P’
B
I
11. Biot – Savart’s Law in vector form:
dB =
μ0 I dl x r
4π r2
dB =
μ0 I dl x r
4π r3
Value of μ0 = 4π x 10-7 Tm A-1 or Wb m-1 A-1
Direction of dB is same as that of direction of dl x r which can be
determined by Right Hand Screw Rule.
It is emerging at P’ and entering at P into the plane of the diagram.
Current element is a vector quantity whose magnitude is the vector
product of current and length of small element having the direction of the
flow of current. ( I dl)
x
12. Magnetic Field due to a Straight Wire carrying current:
P
θ
r
a
I
Ф2
Ф1
Ф
l
According to Biot – Savart’s law
dB =
μ0 I dl sin θ
4π r2
sin θ = a / r = cos Ф
or r = a / cos Ф
tan Ф = l / a
or l = a tan Ф
dl = a sec2 Ф dФ
Substituting for r and dl in dB,
dB =
μ0 I cos Ф dФ
4π a
Magnetic field due to whole conductor is obtained by integrating with limits
- Ф1 to Ф2. ( Ф1 is taken negative since it is anticlockwise)
μ0 I cos Ф dФ
4π a
B = ∫dB = ∫
-Ф1
Ф2
B =
μ0 I (sin Ф1 + sin Ф2)
4πa
dl
x B
13. If the straight wire is infinitely long,
then Ф1 = Ф2 = π / 2
B =
μ0 2I
4πa
B =
μ0 I
2πa
or
B
a
a 0
B B
Direction of B is same as that of direction of dl x r which can be
determined by Right Hand Screw Rule.
It is perpendicular to the plane of the diagram and entering into
the plane at P.
Magnetic Field Lines:
I I
14. Magnetic Field due to a Circular Loop carrying current:
1) At a point on the axial line:
O
a
r
dB
dB
dB cosФ
dB sinФ
I I
dl
C
X Y
dl
D
X’ Y’
90°
Ф
Ф
Ф
Ф
x
The plane of the coil is considered perpendicular to the plane of the
diagram such that the direction of magnetic field can be visualized on
the plane of the diagram.
At C and D current elements XY and X’Y’ are considered such that
current at C emerges out and at D enters into the plane of the diagram.
P
dB cosФ
dB sinФ
15. dB =
μ0 I dl sin θ
4π r2
dB =
μ0 I dl
4π r2
μ0 I dl sinФ
4π r2
B = ∫dB sin Ф = ∫ or B =
μ0 I (2πa) a
4π (a2 + x2) (a2 + x2)½
B =
μ0 I a2
2(a2 + x2)3/2
(μ0 , I, a, sinФ are constants, ∫dl = 2πa and r & sinФ are
replaced with measurable and constant values.)
or
The angle θ between dl and r is 90° because the radius of the loop is very
small and since sin 90° = 1
The semi-vertical angle made by r to the loop is Ф and the angle between r
and dB is 90° . Therefore, the angle between vertical axis and dB is also Ф.
dB is resolved into components dB cosФ and dB sinФ .
Due to diametrically opposite current elements, cosФ
components are always opposite to each other and hence they
cancel out each other.
SinФ components due to all current elements dl get added up
along the same direction (in the direction away from the loop).
16. I I
Different views of direction of current and magnetic field due to circular loop of
a coil:
B
x
x 0
ii) If the observation point is far away from
the coil, then a << x. So, a2 can be neglected
in comparison with x2.
B =
μ0 I a2
2 x3
Special Cases:
i) At the centre O, x = 0. B =
μ0 I
2a
B
I
I
B B
17. x
2) B at the centre of the loop:
dB
The plane of the coil is lying on the plane
of the diagram and the direction of current
is clockwise such that the direction of
magnetic field is perpendicular and into
the plane.
dB =
μ0 I dl sin θ
4π a2
I
I
dl
90°
dB =
μ0 I dl
4π a2
The angle θ between dl and a is
90° because the radius of the
loop is very small and since
sin 90° = 1
B = ∫dB = ∫
μ0 I dl
4π a2
B =
μ0 I
2a
(μ0 , I, a are constants and ∫dl = 2πa )
a
O
B
a
0
18. Magnetic Field due to a Solenoid:
I I
x
x
x
x
x x
x
TIP:
When we look at any end of the coil carrying current, if the current is in
anti-clockwise direction then that end of coil behaves like North Pole
and if the current is in clockwise direction then that end of the coil
behaves like South Pole.
B
22. Forces between two parallel infinitely long current-carrying conductors:
r
F21
F12
I1
P
Q
I2
S
R
B1 =
μ0 I1
2π r
Magnetic Field on RS due to current in PQ is
Force acting on RS due to current I2 through it is
F21 =
μ0 I1
2π r
I2 l sin 90˚
B1 acts perpendicular and into the plane of the diagram by
Right Hand Thumb Rule. So, the angle between l and B1 is 90˚ .
l is length of the conductor.
F21 =
μ0 I1 I2 l
2π r
B2 =
μ0 I2
2π r
Magnetic Field on PQ due to current in RS is
Force acting on PQ due to current I1 through it is
F12 =
μ0 I2
2π r
I1 l sin 90˚ F12 =
μ0 I1 I2 l
2π r
(The angle between l and
B2 is 90˚ and B2 Is
emerging out)
F12 = F21 = F =
μ0 I1 I2 l
2π r
F / l =
μ0 I1 I2
2π r
or
or
Force per unit length of the conductor is N / m
(in magnitude)
(in magnitude)
x B1
B2
23. r
F
I1
P
Q
F
I2
x
S
R
r I2
F
x
S
R
I1
F
P
Q
x
By Fleming’s Left Hand Rule,
the conductors experience
force towards each other and
hence attract each other.
By Fleming’s Left Hand Rule,
the conductors experience
force away from each other
and hence repel each other.
24. Definition of Ampere:
F / l =
μ0 I1 I2
2π r
Force per unit length of the
conductor is
N / m
When I1 = I2 = 1 Ampere and r = 1 m, then F = 2 x 10-7 N/m.
One ampere is that current which, if passed in each of two parallel
conductors of infinite length and placed 1 m apart in vacuum causes each
conductor to experience a force of 2 x 10-7 Newton per metre of length of
the conductor.
Representation of Field due to Parallel Currents:
I1 I2
B
I1 I2
B
N