Q. Power factor is maximum in an $LCR$ circuit when
A) $X_{L} = X_{C}$
B) $R = 0$
C) $X_{L} = 0$
D) $X_{C} = 0$
Explanation
(a) In $LCR$ circuit; in the condition of resonance $X_{L} = X_{C},\ i.e.,$ circuit behaves as resistive circuit. In resistive circuit power factor is maximum
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.