Question

The phenomenon of electromagnetic induction is ;

• A. the process of charging a sphere
• B. the process of producing magnetic field in a coil
• C. the process of producing induced current in a coil whenever there is a relative motion between the coil and the magnet
• D. the process of producing cooling effect

Answer 1

Answer: (C)

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 placed in a changing magnetic field (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.