Question

electromagnetic induction means--


Charging of an electric conductor

Production of magnetic field due to a current flowing through a coil

Generation of a current in a coil due to relative motion between the coil under magnet

Motion of the coil around the axle in an electric motor

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Answer 1

Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction.

Answer 2

I think number 2 is the correct answer......................