In an electrical circuit, R, L, C and AC voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and current in the circuit is \(\frac{\pi}{3}\) Instead, if C is removed from the circuit, the phase difference is again \(\frac{\pi}{3}\) . The power factor of the of the circuit is ……………
A. \(\frac{1}{2}\)
B. \(\frac{1}{\sqrt{2}}\)
C. 1
D. \(\frac{\sqrt{3}}{2}\)
Answer:C
In an electrical circuit, R, L, C and AC voltage source are all connected in series. When L is removed from the circuit, the phase difference between the voltage and current in the circuit is \(\frac{\pi}{3}\) Instead, if C is removed from the circuit, the phase difference is again \(\frac{\pi}{3}\) . The power factor of the of the circuit is ……………
A. \(\frac{1}{2}\) B. \(\frac{1}{\sqrt{2}}\) C. 1 D. \(\frac{\sqrt{3}}{2}\)