Question

Under what condition is an EMF induced in a closed coil?

Options

• When its external load is removed

• When its rotor shaft stops rotating

• When the magnetic flux linked with it changes with time

• When the magnetic flux linked with it remains constant

Answer 1

Faraday's Law of Electromagnetic Induction requires changing magnetic flux. When the flux linked with a closed coil changes with time, an EMF is induced.