A resistor is to be operated from a

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

Problem

50\,\Omega

resistor is to be operated from a

200\,\text{V}

50\,\text{Hz}

mains with its power factor raised to

0.8

leading by connecting a capacitor in series. The approximate value of the required capacitance is (a)

50\,\mu\text{F}

(b)

85\,\mu\text{F}

(c)

120\,\mu\text{F}

(d)

8.5\,\mu\text{F}