Question

The condition necessary for electromagnetic induction is that
(a) there must be a relative motion between the coil of wire and galvanometer.
(b) there must be a relative motion between the coil of wire and a magnet.
(c) there must be a relative motion between the galvanometer and a magnet
(d) all of the above.

Answer 1

All the above is the option

I hope this will help you

Answer 2

The condition necessary for electromagnetic induction is that there must be a relative motion between the coil of wire and a magnet.

Electromagnetic induction refers to the process of producing voltage using a magnetic field. It can also be used to produce current in a closed circuit.

Electromagnetic induction was noticed by Michael Faraday in the 1830s when he noticed an electromotive force was induced as he pushed a permanent magnet inside and outside a coil of wire.