• # question_answer In an AC circuit, the reactance is equal to the resistance. The power factor of the circuit will be A)  1                                B)  $\frac{1}{2}$C) $\frac{1}{\sqrt{2}}$                         D)  0

$\text{Tan}\Phi =\frac{x}{R}=1,$power factor $=\cos \Phi =\frac{1}{\sqrt{2}}$ Hence, the correction option is [c].