A series LCR circuit with L =100/(π) mH, C =(10^-3)/(π) F and R =10 Ω, is connected across an ac source of 220 V, 50 Hz supply. The power factor of…

A series LCR circuit with $\displaystyle \mathrm{L}=\frac{100}{\pi} \mathrm{mH}, \mathrm{C}=\frac{10^{-3}}{\pi} \mathrm{~F}$ and $\displaystyle \mathrm{R}=10 \Omega$, is connected across an ac source of $\displaystyle 220$ V, $\displaystyle 50$ Hz supply. The power factor of the circuit would be $\displaystyle \_\_\_\_$.