MHT CET 2026 Physics question
In an LCR circuit at resonance, the a.c. source current is (A) maximum in a series LCR circuit only. (B) maximum in a parallel LCR circuit only. (C) maximum in both series and parallel LCR circuits. (D) minimum in both series and parallel LCR circuits. The correct answer is
Answer: (D)
Solution
At resonance . In a series LCR circuit the net reactance is zero, so the impedance is minimum () and the current drawn from the source is maximum. In a parallel LCR circuit the currents through L and C are equal in magnitude and opposite in phase, so they cancel; the source
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