engineering physics MCQ #191

The resonance frequency of an LCR circuit is 100 Hz. If L = 1 H, find C.

engineering physics MCQ #191

  1. Question 1

    Q1. The resonance frequency of an LCR circuit is 100 Hz. If L = 1 H, find C.

    • A) 2.5 μF
    • B) 10 μF
    • C) 5 μF
    • D) 1 μF

    Answer: 2.5 μF

    Explanation: At resonance, f = 1 / (2π√LC); 100 = 1 / (2π√(1*C)), so C = 1 / (4π² * 100² * 1) = 2.5 μF.