The current in a primary coil is increased uniformly from to in

PHYSICS · Single correct · CBSE · Physics · Electromagnetic Induction · Electromagnetic Induction

Problem

The current in a primary coil is increased uniformly from

0

6\,\text{A}

30\,\text{ms}

. If the mutual inductance between the primary and a nearby secondary coil is

150\,\text{mH}

, the magnitude of the emf induced in the secondary is (a)

45\,\text{V}

(b)

30\,\text{V}

(c)

60\,\text{V}

(d)

20\,\text{V}