engineering physics MCQ #131

A coil has a resistance of 10 ohm and an inductance of 0.1 H. If it is connected to an AC source of 50 Hz, what is the inductive reactance?

engineering physics MCQ #131

  1. Question 1

    Q1. A coil has a resistance of 10 ohm and an inductance of 0.1 H. If it is connected to an AC source of 50 Hz, what is the inductive reactance?

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

    Answer: 31.4 ohm

    Explanation: Xl = 2πfL = 2 * 3.14 * 50 * 0.1 = 31.4 ohm.