Alternating Current

A series LCR circuit with resistance (R) \(500 ~\mathrm{ohm}\) is connected to an a.c. source of \(250 \mathrm{~V}\). When only the capacitance is removed, the current lags behind the voltage by \(60^{\circ}\). When only the inductance is removed, the current leads the voltage by \(60^{\circ}\). The impedance of the circuit is \(\left(\tan \frac{\pi}{3}=\sqrt{3}\right)\)