Faraday’s Law Of Induction

Induced emf - Example 1(Loop kept inside a time-varying magnetic field)

  • Definition of Faraday’s Law
  • Induced emf in a loop
  • Magnetic flux
  • Magnetic field lines
  • Change in flux
  • Equation: Faraday’s Law of Induction
  • Loop inside a time-varying magnetic field
  • Direction of induced emf
  • Example: A loop in a time-varying magnetic field
  • Calculation of induced emf

Slide 11

Faraday’s Law Of Induction - Induced EMF

  • Definition of induced EMF
  • Induced EMF in a loop
  • Magnetic flux
  • Magnetic field lines
  • Change in magnetic flux

Slide 12

Faraday’s Law Of Induction - Equation

  • Faraday’s Law of Induction equation
  • Relationship between induced EMF and rate of change of magnetic flux

Slide 13

Faraday’s Law Of Induction - Loop Inside a Time-Varying Magnetic Field

  • Loop placed inside a time-varying magnetic field
  • Magnetic field lines changing with time
  • Flux through the loop changes with time

Slide 14

Faraday’s Law Of Induction - Direction of Induced EMF

  • Direction of induced EMF as per Lenz’s Law
  • Lenz’s Law and conservation of energy
  • Induced EMF opposes the change in magnetic flux

Slide 15

Faraday’s Law Of Induction - Example: A Loop in a Time-Varying Magnetic Field

  • Example scenario: Loop in a time-varying magnetic field
  • Increasing magnetic field strength
  • Decreasing magnetic field strength

Slide 16

Faraday’s Law Of Induction - Calculation of Induced EMF

  • Calculation of induced EMF in the loop
  • Relationship between induced EMF and change in magnetic flux
  • Calculation steps using Faraday’s Law equation
  • Units of induced EMF

Slide 17

Faraday’s Law Of Induction - Induced EMF - Example 2 (Rotation of a Coil in Magnetic Field)

  • Example scenario: A coil rotating in a magnetic field
  • Change in magnetic flux due to rotation
  • Calculation of induced EMF in the coil
  • Concept of rotational motion and magnetic field

Slide 18

Faraday’s Law Of Induction - Lenz’s Law - Example 3 (Magnetic Field due to a Current-Carrying Wire)

  • Example scenario: Magnetic field due to a current-carrying wire
  • Change in magnetic field due to change in current
  • Calculation of induced EMF using Lenz’s Law

Slide 19

Faraday’s Law Of Induction - Self Inductance

  • Self-inductance definition
  • Induced EMF in a coil due to self-induction
  • Induced EMF equation for self-inductance
  • Lenz’s Law and self-inductance

Slide 20

Faraday’s Law Of Induction - Mutual Inductance

  • Mutual inductance definition
  • Induced EMF in a coil due to mutual induction
  • Faraday’s Law and mutual inductance
  • Calculation of induced EMF in a coil due to mutual induction

Slide 21

Faraday’s Law Of Induction - Induced EMF - Example 1(Loop kept inside a time-varying magnetic field)

  • Example scenario: Loop kept inside a time-varying magnetic field
  • Loop dimensions and magnetic field characteristics
  • Time-varying magnetic field pattern
  • Calculation of induced EMF in the loop
  • Unit of magnetic field strength

Slide 22

Faraday’s Law Of Induction - Magnetic Flux - Example 1(Loop kept inside a time-varying magnetic field)

  • Magnetic flux definition
  • Calculation of magnetic flux
  • Flux through the loop in the example scenario
  • Change in magnetic flux over time
  • Relationship with induced EMF

Slide 23

Faraday’s Law Of Induction - Electromagnetic Induction - Example 2(Coil rotating in magnetic field)

  • Example scenario: Coil rotating in a magnetic field
  • Change in flux with rotation
  • Calculation of induced EMF in the coil
  • Concept of rotational motion and magnetic field
  • Application in electric generators

Slide 24

Faraday’s Law Of Induction - Induced EMF - Example 2(Coil rotating in magnetic field)

  • Induced EMF calculation steps for rotating coil example
  • Relationship between number of turns and induced EMF
  • Units for number of turns and induced EMF
  • Role of coil resistance in induced EMF
  • Application in motors and generators

Slide 25

Faraday’s Law Of Induction - Lenz’s Law - Example 3(Magnetic field due to current-carrying wire)

  • Example scenario: Magnetic field due to current-carrying wire
  • Change in magnetic field strength with current variation
  • Calculation of induced EMF using Lenz’s Law
  • Magnetic field direction around the wire
  • Magnetic field interaction with nearby objects

Slide 26

Faraday’s Law Of Induction - Self Inductance - Example 1(Coil with changing current)

  • Example scenario: Coil with changing current
  • Calculation of induced EMF due to self-inductance
  • Relationship between rate of change of current and induced EMF
  • Unit of self-inductance
  • Role of self-inductance in electronic circuits

Slide 27

Faraday’s Law Of Induction - Inductance - Example 1(Coil with changing current)

  • Definition of inductance
  • Calculation of inductance for a coil
  • Relationship between inductance and magnetic field
  • Factors affecting inductance for different coils
  • Inductance in energy storage devices

Slide 28

Faraday’s Law Of Induction - Mutual Inductance - Example 1(Interacting coils)

  • Example scenario: Interacting coils
  • Calculation of induced EMF due to mutual induction
  • Relationship between number of turns and induced EMF
  • Mutual inductance equation
  • Application in transformers

Slide 29

Faraday’s Law Of Induction - Induced EMF - Example 1(Interacting coils)

  • Calculation of induced EMF in interacting coils example
  • Relationship between flux change and induced EMF
  • Units for mutual inductance and induced EMF
  • Role of magnetic core material in transformers
  • Application in power transmission and distribution

Slide 30

Faraday’s Law Of Induction - Summary

  • Overview of Faraday’s Law of Induction
  • Induced EMF due to changing magnetic flux
  • Lenz’s Law and the direction of induced EMF
  • Self-inductance and mutual inductance
  • Practical applications and significance in technology and industry