engineering physics MCQ #76

In an AC circuit, the voltage and current are given by V = V0 sin(ωt) and I = I0 sin(ωt - π / 2). The power consumed is

engineering physics MCQ #76

  1. Question 1

    Q1. In an AC circuit, the voltage and current are given by V = V0 sin(ωt) and I = I0 sin(ωt - π / 2). The power consumed is

    • A) V0 * I0 / 2
    • B) V0 * I0 / √2
    • C) 0
    • D) V0 * I0

    Answer: 0

    Explanation: Power factor = cos(π / 2) = 0, so P_avg = 0.