engineering physics MCQ #281

A capacitor of capacitance 100 μF is connected to an AC source of 100 V, 50 Hz. Find the capacitive reactance.

engineering physics MCQ #281

  1. Question 1

    Q1. A capacitor of capacitance 100 μF is connected to an AC source of 100 V, 50 Hz. Find the capacitive reactance.

    • A) 31.83 Ω
    • B) 318.3 Ω
    • C) 31.83 kΩ
    • D) 318.3 kΩ

    Answer: 318.3 Ω

    Explanation: Capacitive reactance Xc = 1 / (2πfC) = 1 / (2 * 3.14159 * 50 * 100 * 10^(-6)) = 1 / 0.0314159 = 31.83 Ω.