An ac source of is connected to a series circuit having resistance

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

Problem

An ac source of

110\,\text{V (rms)}

is connected to a series

RLC

circuit having resistance

20\,\Omega

. Calculate the maximum value of current when the circuit is in resonance. (a)

5.5\,\text{A}

(b)

11\,\text{A}

(c)

7.8\,\text{A}

(d)

3.9\,\text{A}