Verified Solution • 2025–26 Session moderate

QPages 328-329: Q7: HC Verma: Concepts of Physics - Volume 2 Alternating Current Pages 328-329: Q7 Solution: When the frequency of the AC source in an LCR circuit equals…

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?

Step-by-Step Verified Solution

**Answer:** No, current flows through both. **Step-by-Step Explanation:** At resonance, XL=XCX_L = X_C, so the net reactance is zero and the impedance is purely resistive. The current is maximum and flows through all elements. The potential differences across the inductor and capacitor are equal in magnitude but opposite in phase, so they cancel each other [citation:1][citation:14][citation:16].

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