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The expression for the induced e.m.f. co...

The expression for the induced e.m.f. contains a negative sign `[e=-(dphi)/(dt)]`. What is the significance of the negative sign?

A

The induced e.m.f is produced only when the magnetic flux decreases.

B

The induced e.m.f opposes the change in the magnetic flux.

C

The induced e.m.f. is opposite to the direction of the flux

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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