engineering physics MCQ #302

A series LCR circuit is in resonance. If the capacitance is doubled, what happens to the resonant frequency?

engineering physics MCQ #302

  1. Question 1

    Q1. A series LCR circuit is in resonance. If the capacitance is doubled, what happens to the resonant frequency?

    • A) It doubles
    • B) It halves
    • C) It becomes 1/√2 times
    • D) It remains the same

    Answer: It becomes 1/√2 times

    Explanation: f = 1 / (2π√LC). If C is doubled, f becomes 1 / √(2C) = 1/√2 times the original frequency.