PhysicsNEET 2022Resonance, power and power factor

Alternating Current

A series LCR circuit with inductance 10 H, capacitance $10 μ F$ and resistance $50Ω$ is connected to an ac source of voltage $V = 200 sin (100 t)$ volt. If the resonant frequency of the LCR circuit is $ν_{0}$ and the frequency of the ac source is $ν$ , then:

A. $ν_{0} = 100 Hz; ν = \frac{100}{π} Hz$
B. $ν_{0} = ν = 50 Hz$
C. $ν_{0} = ν = \frac{50}{π} Hz$ ✓
D. $ν_{0} = 50 Hz; ν = \frac{50}{π} Hz$

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

Alternating Current

More from this chapter in past papers