Which one of the following expressions represents the power factor of a series – –…

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

Problem

Which one of the following expressions represents the power factor of a series

R

–

L

–

C

circuit? (a)

\displaystyle \frac{X_L-X_C}{Z}

(b)

\displaystyle \frac{Z}{R}

(c)

\displaystyle \frac{R}{Z}

(d)

\displaystyle \frac{X_L}{Z}