Question

explain electromagnetic induction, Faraday's Law, and inductance. Also give examples.

PLEASE DO NOT WRITE IT BY HAND.

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Answer 1

Solution:

a) Electromagnetic Induction:

Electromagnetic Induction is defined as the induction of an electromotive force by the motion of a conductor across a magnetic field or by a charge in magnetic flux in a magnetic field is called Electromagnetic Induction.

The Law of electromagnetic induction was found by Michael Faraday.

Example :

1) Electromagnetic Induction In AC Generator :

The AC generator with an output capacity of 100MV is a more evolved machine. As the coil rotates in a magnetic field B, the effective area of the loop is A Cos(Theta) where Theta is angle between A and B. This is a method of producing a flux change is the principle of operation of a simple AC generator. The axis of rotation coil is perpendicular to the direction of magnetic field. The rotation of the coil causes the magnetic flux through it to change , so an emf keeps inducing in the coil

b) Faraday's Law:

Faraday's Law Of Induction is law of electromagnetism predicting how a magnetic field will interact with an electric circuit to produce an emf

It states that "emf in a closed circuit is equal to negative of the time rate of change of the magnetic flux enclosed by the circuit."

Example :

It is fundamental operating principle of transformers, inductors and many more types of electrical motors and generators.

c) Inductance :

Inductance is the property of an electrical conductor by which a change in electric current through it induces an emf in the conductor. It is more accurately called self inductance. The same property causes a current in one conductor to induce an electromotive force in nearby conductors this is called Mutual Inductance.

Example:

Inductance exists in case of solenoids, electric motors and generators etc.

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