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Question 20197
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Electromagnetic Induction and Alternating Current: Resonance Frequency MCQ

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Resonance FrequencyEasyQuestion 20197

Question

At resonance in a series LCR circuit, the resonance frequency f₀ is:
  1. A
    1/(2π√LC)
    Correct
  2. B
    2π/√LC
  3. C
    √LC/2π
  4. D
    1/(2πLC)

Correct answer

1/(2π√LC)

Explanation

At resonance, X_L = X_C → ωL = 1/(ωC) → ω₀ = 1/√(LC) → f₀ = 1/(2π√LC).

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