NEET UG PHYSICS MCQ: ALTERNATING CURRENT

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Application +4 | -1

A current of 10 A in the primary coil of a circuit is reduced to zero. If the coefficient f mutual inductance is 3H and emf induced in secondary coil is 30 kV, time taken for the change of current is

View answer and explanation

Correct option: C

{10^{ - 3}}s

Option C (

{10^{ - 3}}s

) is correct because the time taken for the change of current is calculated using the formula

E = -M \frac{dI}{dt}

, resulting in

{10^{ - 3}}s

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