engineering physics MCQ #82

A 50 Hz AC source is connected to a circuit. The time taken by the current to change from its maximum to rms value is

engineering physics MCQ #82

  1. Question 1

    Q1. A 50 Hz AC source is connected to a circuit. The time taken by the current to change from its maximum to rms value is

    • A) 1 / 200 s
    • B) 1 / 400 s
    • C) 1 / 100 s
    • D) 1 / 50 s

    Answer: 1 / 400 s

    Explanation: I_max to I_rms is T / 8, so t = 1 / (8 * 50) = 1 / 400 s.