engineering physics MCQ #90

The inductive reactance of an inductor at 50 Hz is 100 Ω. Its reactance at 25 Hz is

engineering physics MCQ #90

  1. Question 1

    Q1. The inductive reactance of an inductor at 50 Hz is 100 Ω. Its reactance at 25 Hz is

    • A) 50 Ω
    • B) 200 Ω
    • C) 25 Ω
    • D) 400 Ω

    Answer: 50 Ω

    Explanation: X_L = ωL. If f is halved, X_L is halved, so 100 / 2 = 50 Ω.