'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 Vibrating Atomolic Substances