Question

what happens when magnetic flux change​

Answer 1

Any change in the magnetic environment of a coil of wire will cause a voltage (emf) to be "induced" in the coil. No matter how the change is produced, the voltage will be generated. ... The induced emf in a coil is equal to the negative of the rate of change of magnetic flux times the number of turns in the coil.

Answer 2

Answer:

any change in magnetic environment of a coil of wire will cause a voltage to be induced in the coil no matter how the change is produced the voltage will be generated