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What is the resonant frequency of a series RLC circuit, if R is 47 ohms, L is 40 microhenrys and C is 200 picofarads?
1.78 MHz
Resonant frequency (fr) of a series RLC circuit is fr = 1 / (2π√(LC)). With L=40µH and C=200pF, fr = 1 / (2π√(40e-6 × 200e-12)) ≈ 1.779 MHz.
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