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