Which of the following is NOT a correct definition of the power factor in a series R-L-C circuit?

Show Answers

The ratio of net reactance to the total impedanceThe quotient of real power (kW) divided by apparent power (kVA)The ratio between the imaginary part of impedance (J) and the magnitude of impedance (Z)The fraction of active power (W) over apparent power (VA)None of the above

Explanation

Option A is incorrect because power factor is not defined as the ratio of net reactance to impedance. Instead, power factor is the ratio of real power (kW or W) to apparent power (kVA or VA), representing the cosine of the phase angle between voltage and current. Options B, C, and D describe valid relationships related to power factor or its components.