MDCAT Physics MCQ #46

The power factor of an AC circuit is 0.8. What is the phase difference between voltage and current?

MDCAT Physics MCQ #46

  1. Question 1

    Q1. The power factor of an AC circuit is 0.8. What is the phase difference between voltage and current?

    • A) 36.87 degrees
    • B) 53.13 degrees
    • C) 45 degrees
    • D) 60 degrees

    Answer: 36.87 degrees

    Explanation: Power factor = cos(φ) = 0.8; φ = arccos(0.8) = 36.87 degrees. Option B is incorrect due to wrong calculation.