A resistor and an inductor are connected in series to the

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

A resistor

R = 50\,\Omega

and an inductor

L = 0.20\,\text{H}

are connected in series to the

230\,\text{V}

50\,\text{Hz}

mains. To ensure the rms current does not exceed

4.0\,\text{A}

, what is the minimum capacitance that should be added in series (nearest whole

\mu\text{F}

)? (a) 70\,

\mu

F (b) 92\,

\mu

F (c) 55\,

\mu

F (d) 35\,

\mu