Question Detail
Question
Answer saved The resonant frequency of a circuit is 1000 kHz. If each of the capacitance and inductance in the circuit is reduced by 50% and no other changes are made, the resonant frequency will become
Correct Answer
Option B is the correct answer.
Detailed Explanation
f = 1/(2π√(LC)). L→L/2, C→C/2 → LC→LC/4 → √(LC)→½√(LC) → f doubles to 2000 kHz.
Hint
f ∝ 1/√(LC).