MDCAT Physics MCQ #38

A capacitor has a capacitive reactance of 100 Ω at 50 Hz. What is its capacitance?

MDCAT Physics MCQ #38

  1. Question 1

    Q1. A capacitor has a capacitive reactance of 100 Ω at 50 Hz. What is its capacitance?

    • A) 10 μF
    • B) 20 μF
    • C) 31.8 μF
    • D) 63.6 μF

    Answer: 31.8 μF

    Explanation: C = 1 / (2πfXc) = 1 / (2π * 50 Hz * 100 Ω) = 31.8 μF. Option A is incorrect because it is less than the correct value.