Question

In a series LCR circuit $V_{L=}{V}_C\ne V_R$.What is the value of power factor?

Answer 1

In an LCR series circuit, power dissipated is given by

$P=I^{2}Zcos\Phi \frac{P}{I^2\sqrt{R^2}+(X_C-X_L{)}^2}\because V_L=V_{C}and{X}_L=X_C\therefore cos\Phi =\frac{P}{I^{2}R}$