Radio Amateur Quiz Canadian License

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Question A-001-003-006

What is the resonant frequency of a series RLC circuit, if R is 47 ohms, L is 4 microhenrys and C is 20 picofarads?

Correct Answer

17.8 MHz

Explanation

Resonant frequency (fr) of a series RLC circuit is fr = 1 / (2π√(LC)). With L=4µH and C=20pF, fr = 1 / (2π√(4e-6 × 20e-12)) ≈ 17.794 MHz.

Warning: Generated by AI