1.

If either the inductance or the rate of change of current is doubled, the induced e.m.f?(a) Remains constant(b) Becomes zero(c) Doubles(d) Becomes half

Answer» Right answer is (c) Doubles

To explain I would say: If either the inductance or the rate of change of current is doubled, the induced e.m.f. becomes double because of emf=LI/t.


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