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Question

Current is induced in a coil by electromagnetic induction when :
  1. Only the coil moves in a magnetic field.
  2. Only the magnet moves towards the coil.
  3. Coil and the magnet move with respect to each other.
  4. None of the above

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

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.

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