When an AC signal of frequency is applied across a coil of resistance

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

When an AC signal of frequency

1\ \text{kHz}

is applied across a coil of resistance

100\ \Omega

, the applied voltage leads the current by

45^\circ

. The inductance of the coil is (a)

16\ \text{mH}

(b)

12\ \text{mH}

(c)

8\ \text{mH}

(d)

4\ \text{mH}