An ideal parallel LC circuit is connected to an AC source at its resonant frequency. Which statements are correct?
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Question

An ideal parallel LC circuit is connected to an AC source at its resonant frequency. Which statements are correct?

G1 Physics · Accepted Answer

At ideal parallel resonance, Iʟ and Iᴄ are equal in magnitude and opposite in reactive phase, so they cancel at the source. Thus source current can be zero and equivalent impedance tends to infinity. With ideal L and C there is no average power consumption.