Question

Current is induced in a coil by electromagnetic induction when :

• A. Only the coil moves in a magnetic field.
• B. Only the magnet moves towards the coil.
• C. Coil and the magnet move with respect to each other.
• D. None of the above

Answer 1

The correct option is C Coil and the magnet move with respect to each other.

Answer is C.

Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field. It is the production of an electric current by changing the magnetic field enclosed by an electrical circuit.
It is a process where a conductor, say a coil, placed in a changing magnetic field, say close to a bar magnet, (or a conductor moving through a stationary magnetic field) causes the production of a voltage across the conductor. This process of electromagnetic induction, in turn, causes an electrical current - it is said to induce the current.
Current is induced in a coil by electromagnetic induction when coil and the magnet move with respect to each other.