Physics

Problem

A coil of resistance

50\,\Omega

and inductance

0.50\,\text{H}

is connected in series with a capacitor across a

230\,\text{V}

50\,\text{Hz}

mains supply. To make the circuit operate at unity power factor, the required capacitance is closest to a)

5\,\mu\text{F}

40\,\mu\text{F}

20\,\mu\text{F}

10\,\mu\text{F}