MHT CET 2022 Physics question

In LC parallel resonance circuit, choose the wrong statement.

(A)Resonance occurs when inductive and capacitive reactance is same
(B)At resonance, current is minimum
(C)At resonance, impedance is maximum
(D)At resonance, resonant frequency = Correct

Answer: (D)

Solution

In a parallel LC (tank) circuit, resonance occurs when , so the inductor and capacitor branch currents are equal in magnitude and opposite in phase and cancel almost completely. The current drawn from the source is therefore minimum and the impedance is maximum (ideally infinite, for a real

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Question ID VK-093605