# What is the maximum value of power factor and when does it occurs

priyanka
16 Points
5 years ago
power factor is cos$\Phi$ = R/$\left ( R^{2}+(\omega L-\1/\omega C)^{2} \right)$. Hence max cos value is 1 which is possible when $X_{l}=X^{_{c}}$ i.e. resonance .
so when there is resonance then power factor will be maximum .