1. A series circuit consisting of a 40-ohms resistor, a 100-μf capacitor, and a variable inductor is connected two a 220-volt 60-cycle source. (a) Calculate the value of inductance L1, the current I,...

1. A series circuit consisting of a 40-ohms resistor, a 100-μf capacitor, and a variable inductor is connected two a 220-volt 60-cycle source.

(a) Calculate the value of inductance L1, the current I, and the voltage drop across the inductor EL for the condition of resonance;

(b) Determine the value of L, the current I, and the voltage drop across the inductor EL when the latter has its maximum value.