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When the frequency of the AC source in an LCR circuit equals the resonant frequency, the reactance of the circuit is zero. Does it mean that there is no current through the inductor or the capacitor ?


When the frequency of the AC source in an LCR circuit equals the resonant frequency, the reactance of the circuit is zero. Does it mean that there is no current through the inductor or the capacitor ?


Grade:12

1 Answers

Chetan Mandayam Nayakar
312 Points
13 years ago

The reactance being zero implies that the net voltage across the capacitor-inductor combination is zero. This is because, at resonant frequency, the individual reactances of the capacitor and inductor are negative of each other, due to which the voltages across them are always equal and opposite.

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