Question

In series RLC circuit, the voltage across capacitor and inductor are ______ with each other.

(a) in phase

(b) 180⁰ out of phase

(c) 90⁰ out of phase

(d) 45⁰ out of phase

The question was asked in unit test.

Query is from Series Resonance topic in division Resonance & Magnetically Coupled Circuit of Network Theory

Answer 1

The correct choice is (b) 180⁰ out of phase

The explanation is: In series RLC circuit, the voltage across capacitor and inductor are 180⁰ out of phase with each other. The frequency at which the resonance occurs is called resonant frequency.