Induced emf would be there in a circuit only for that much duration for which……..linked with the circuit is…….

Magnetic flux

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Changing

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Solution

Induced emf is directly proportional to the magnetic flux through the coil.
Magnetic flux will be present when there is a change in the given circuit linked with it.
So induced emf would be there in a circuit only for that much duration for which magnetic flux is linked with the circuit is changing or connected.
Thus induced emf would be there in a circuit only for that much duration for which magnetic flux linked with the circuit is changing.

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