engineering physics MCQ #176

A series LCR circuit is in resonance. If the capacitance is doubled, the new resonant frequency will be

engineering physics MCQ #176

  1. Question 1

    Q1. A series LCR circuit is in resonance. If the capacitance is doubled, the new resonant frequency will be

    • A) 1 / √2 times the original
    • B) √2 times the original
    • C) same as the original
    • D) 2 times the original

    Answer: 1 / √2 times the original

    Explanation: Use f_res = 1 / (2π√(LC)), so if C is doubled, f_res becomes 1 / √2 times the original.