18. An inductor (L = 400 mH), a capacitor (C = 4.43 micro-F), and a resistor (R = 500 Ohm ) are connected in series. A 50.0-Hz AC generator connected in series to these elements produces a maximum current of 250 mA in the circuit. (a) Calculate the required maximum voltage V_max. (b) Determine the phase angle by which the current leads or lags the applied voltage.

Solution