engineering physics MCQ #7

The power factor of an AC circuit is

engineering physics MCQ #7

  1. Question 1

    Q1. The power factor of an AC circuit is

    • A) R / Z
    • B) Z / R
    • C) X / R
    • D) R / X

    Answer: R / Z

    Explanation: Power factor = cos(φ) = R / Z, where φ is the phase angle between V and I.