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An emf is produced in a coil, which is n...

An emf is produced in a coil, which is not connected to an external voltage source. This can be due to

A

the coil being in a time-varying magnetic field

B

the coil moving in a time-varying magnetic field

C

the coil moving in a constant magnetic field

D

the coil is stationary in external spatially varying magnetic field, which does not change with time

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
When a coil is not connected to an external source of voltage, then emf in the coil is produced due to changing magnetic flux with time, `e=-(dphi)/(dt)`
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