Question Detail
Question
Calculate the resonant frequency of an R-L-C series circuit with R = 300 Ω, C = 470 µF, L = 35 H.
Correct Answer
Option A is the correct answer.
Detailed Explanation
f = 1/(2π√(LC)) = 1/(2π√(35 × 470×10⁻⁶)) = 1/(2π√(0.01645)) = 1/(2π×0.1283) = 1/0.8056 ≈ 1.24 Hz → closest 1.27 Hz.
Hint
f = 1/(2π√(LC)).