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In an electrical circuit `R,L,C` and an `AC` 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 `pi//3`. If instead, `C` is removed from the circuit, difference the phase difference is again `pi//3`. The power factor of the circuit isA. 1B. `(sqrt(3))/(2)`C. `(1)/(2)`D. `(1)/(sqrt(2))` |
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Answer» Correct Answer - A It is the condition of resonance therefore phase difference between voltage and current is zero and power factor cos `phi=1` |
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