Question

Electromagnetic induction is involved in 1) charging a body with a positive charge 2) production of current by relative motion b/w a magnet & coil 3) rotation of the coil of an electric motor

Answer 1

Answer:

2 and 3..

I hope this answer helps you maa

Answer 2

Answer:

2) Production of current by relative motion between Magnet and Coil.

Explaination:

The phenomenon of producing electric current in a conductor by moving it perpendicular to a magnetic field or vice versa, is called electromagnetic induction.