Power: A series circuit has a 50-Hz ac source, a 60-? resistor, a 0.50-H inductor, and a 10-?F capacitor, as shown in the figure. The rms current in the circuit is 2.2 A. What is the power factor of the circuit?
A. 0.35
B. 0.33
C. 0.31
D. 0.30
E. 0.28
Answer: A
Physics & Space Science
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