MDCAT Physics MCQ #40

An AC source with a frequency of 50 Hz is connected to a series RLC circuit. If L = 0.1 H and C = 100 μF, what is the resonant frequency?

MDCAT Physics MCQ #40

  1. Question 1

    Q1. An AC source with a frequency of 50 Hz is connected to a series RLC circuit. If L = 0.1 H and C = 100 μF, what is the resonant frequency?

    • A) 25 Hz
    • B) 50 Hz
    • C) 100 Hz
    • D) 159 Hz

    Answer: 50 Hz

    Explanation: f_res = 1 / (2π sqrt(LC)) = 1 / (2π sqrt(0.1 H * 100e-6 F)) = 50 Hz (approx). Option A is incorrect because it is not the calculated resonant frequency.