engineering physics MCQ #128

In an AC circuit, the voltage and current are in phase. What is the power factor?

engineering physics MCQ #128

  1. Question 1

    Q1. In an AC circuit, the voltage and current are in phase. What is the power factor?

    • A) 0
    • B) 1
    • C) 0.5
    • D) -1

    Answer: 1

    Explanation: When voltage and current are in phase, the power factor is 1, as cos(0) = 1.