engineering physics MCQ #129

A capacitor is connected to an AC source. If the frequency is doubled, what happens to the capacitive reactance?

engineering physics MCQ #129

  1. Question 1

    Q1. A capacitor is connected to an AC source. If the frequency is doubled, what happens to the capacitive reactance?

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

    Answer: It halves

    Explanation: Xc = 1 / (2πfC). If f is doubled, Xc becomes half.