engineering physics MCQ #133

The voltage across an inductor is given by V = 200 sin(100πt). What is the inductive reactance if the inductance is 0.1 H?

engineering physics MCQ #133

  1. Question 1

    Q1. The voltage across an inductor is given by V = 200 sin(100πt). What is the inductive reactance if the inductance is 0.1 H?

    • A) 31.4 ohm
    • B) 20 ohm
    • C) 15.7 ohm
    • D) 10 ohm

    Answer: 31.4 ohm

    Explanation: ω = 100π, so f = 50 Hz. Xl = 2πfL = 2 * 3.14 * 50 * 0.1 = 31.4 ohm.