Answer to Question #76292 in Electric Circuits for Narendra Kumar Sharma

Question

In L-C-R circuit, Does the current and voltage are in the same phase only at a single
frequency

Answer 1

At resonance condition a circuit has net reactance equals to zero ohms and the net impedance is all resistive. Therefore the phase difference between current and voltage is 0 degrees or in same phase.

So, the current and voltage are in the same phase only at a single frequency.