An ac circuit has a resistance of 120 $\Omega$ and an impedance of 200 $\Omega$.What is the power factor for this circuit?
A) 53$^{\circ}$
B) 32$^{\circ}$
C) 0.60
D) 1.7
E) 1.3

Question

Quizplus · Accepted Answer

The power factor is given by the ratio of the resistance to the impedance, or cos(θ) = R/Z. In this case, cos(θ) = 120/200 = 0.6. Therefore, the answer is choice C.

An Ac Circuit Has a Resistance of 120 Ω\OmegaΩ And an Impedance of 200

An Ac Circuit Has a Resistance of 120 $\Omega$ And an Impedance of 200