In an electrical circuit R, L, C and an a.c voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is π

Question

In an electrical circuit R, L, C and an a.c voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and the current in the circuit is π/3. If instead, C is removed from the circuit, the phase difference is again π/3. The power factor of the circuit is

A

$\frac{\sqrt{3}}{2}$

B

$\frac{1}{2}$

C

$\frac{1}{\sqrt{2}}$

D

1

Accepted Answer

1

Answer

$ \frac{\sqrt{3}}{2} $

Answer

$ \frac{1}{2} $

Answer

$ \frac{1}{\sqrt{2}} $

AIPMT PRELIMS 2012 Physics Resonance in AC Circuits MCQ Question

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