Question 1030 of 844 · Washington 01 Journey Level Electrician Exam
Power factor in an AC circuit is the ratio of:
Exactly one answer is correct.
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Correct answer to question 1030
- B: True power to apparent power
Explanation
Power factor equals true power in watts divided by apparent power in volt-amperes. It ranges from 0 to 1 (or 0 to 100 percent).
More questions: Definitions, Theory and Plans
- 1031In a purely resistive AC circuit, such as an incandescent lamp, the power factor is:
- 1032In a circuit that is mainly inductive, such as a motor winding, the current:
- 1033In a circuit that is mainly capacitive, the current:
- 1034A plant with many induction motors has a low lagging power factor. What is commonly added to improve it?
- 1035As the supply frequency increases, the inductive reactance of a coil:
- 1036As the supply frequency increases, the capacitive reactance of a capacitor: