Faraday's law of induction is a basic law of electromagnetism relating to the operating principles of transformers, inductors, and many types of electrical motors and generators. The law states that:
The induced electromotive force (EMF) in any closed circuit is equal to the time rate of change of the magnetic flux through the circuit.
The electromotive force (EMF) generated is proportional to the rate of change of the magnetic flux.
law of induction
Laws of Electrostatic Induction