Radio Amateur Quiz Canadian License

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Question A-001-004-004

What is the resonant frequency of a parallel RLC circuit if R is 4.7 kilohms, L is 2 microhenrys and C is 30 picofarads?

Correct Answer

20.5 MHz

Explanation

Resonant frequency (fr) of a parallel RLC circuit (assuming high Q) is fr = 1 / (2π√(LC)). With L=2µH and C=30pF, fr = 1 / (2π√(2e-6 × 30e-12)) ≈ 20.548 MHz.

Warning: Generated by AI