A sinusoidal voltage v = 50sinωt is applied to a series RL circuit. The current in the circuit is given by I = 25sin (ωt-53⁰). Find the power factor.
(a) 0.4
(b) 0.5
(c) 0.6
(d) 0.7
This question was addressed to me during an internship interview.
This intriguing question originated from Reactive Power in chapter Power and Power Factor of Network Theory