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1. |
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 |
Answer» D. 0.7 | |