engineering physics MCQ #88

The average power dissipated in an AC circuit is

engineering physics MCQ #88

  1. Question 1

    Q1. The average power dissipated in an AC circuit is

    • A) V_rms * I_rms
    • B) V_rms * I_rms * cos(φ)
    • C) V_peak * I_peak
    • D) V_peak * I_peak * cos(φ)

    Answer: V_rms * I_rms * cos(φ)

    Explanation: P_avg = V_rms * I_rms * cos(φ), where φ is the phase angle between V and I.