engineering physics MCQ #258

A capacitor is connected to an AC source. What happens to the capacitive reactance when frequency is doubled?

engineering physics MCQ #258

  1. Question 1

    Q1. A capacitor is connected to an AC source. What happens to the capacitive reactance when frequency is doubled?

    • A) It doubles
    • B) It halves
    • C) It remains the same
    • D) It becomes zero

    Answer: It halves

    Explanation: Capacitive reactance Xc = 1 / (2πfC), so when frequency f doubles, Xc halves.