A 600-Hz AC Generator with a Peak Voltage of 110 V

Multiple Choice

A 60.0-Hz AC generator with a peak voltage of 110 V drives a series RL circuit with R = 10.0 Ω and L = 10.0 mH. The power factor, cos φ, is

A) −1.00.
B) −0.936.
C) +0.943.
D) +0.936.
E) +1.00.