engineering physics MCQ #23

In an AC circuit, if V = 100 sin(100t) and I = 100 sin(100t + π / 3), then average power loss is

engineering physics MCQ #23

  1. Question 1

    Q1. In an AC circuit, if V = 100 sin(100t) and I = 100 sin(100t + π / 3), then average power loss is

    • A) 2500 W
    • B) 2500 √3 W
    • C) 5000 W
    • D) 5000 √3 W

    Answer: 2500 W

    Explanation: P = Vrms Irms cos(φ) = (100 / √2) * (100 / √2) * cos(π / 3) = 2500 W.