Faraday’s Laws of Electromagnetic Induction

Faraday’s Laws of Electromagnetic Induction 1

Faraday’s law, also known as Faraday’s law of electromagnetic induction, is a fundamental law of electromagnetism that predicts how a magnetic field interacts with an electric circuit to produce an electromotive force (EMF). This is referred to as “electromagnetic induction.”

Faraday laws of electromagnetic induction:

Faraday’s Laws of Electromagnetic Induction consist of two laws:

1. The first law describes the induction of emf in a conductor and

2. The second law calculates the conductor’s generated emf.

Ist Law:

Faraday’s first law of electromagnetic induction states that “When a magnetic field connected to a conductor changes, an electromotive force (emf) is generated in the conductor”.

Faraday’s Laws of Electromagnetic Induction 1

There are two ways to change the magnetic field that is connected to the conductor:

1. By varying the magnetic field while holding the conductor stationary.

2. By shifting the conductor in respect to the magnetic field’s stationary state.

A current known as induced current starts to flow through the conductor if the circuit for the conductor is closed.

IInd Law:

Faraday’s second law states that “The amplitude of the induced emf in the conductor is equal to the rate of change of magnetic flux linked to the conductor “.

Faraday’s Laws of Electromagnetic Induction 2

To calculate ϵ using Faraday’s Law CLICK HERE


N- Number of turns and

Ø – Magnetic flux

Faraday’s Laws of Electromagnetic Induction 2

Applications of Faraday’s Law:

The following are some examples of fields where Faraday’s law is used:

1. The operation of electrical devices like transformers is determined by Faraday’s law.

2. Mutual induction, which is based on the idea of Faraday’s law, is the mechanism by which induction cookers operate.

3. The fluids’ velocity is measured by applying an electromotive force to an electromagnetic flowmeter.

4. Musical instruments that use Faraday’s law include the electric guitar and electric violin.

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Rabert T
As an electrical engineer with 5 years of experience, I focus on transformer and circuit breaker reliability in 110/33-11kV and 33/11kV substations. I am a professional electrical engineer with experience in transformer service and maintenance. I understand electrical principles and have expertise troubleshooting, repairing, and maintaining transformers, circuit breakers, and testing them.