Question

A 120 V rms voltage at 60.0 Hz is applied across an inductor, a capacitor, and a resistor in series. If the peak current in this circuit is 0.84840 A, what is the impedance of this circuit?

Answer 1

Rms voltage v = 120 V

Maximum voltage E = x v

                              = x 120

                               = 169.7 V

Frequency = 60 Hz

Peak current i _o = 0.8484 A

Impedence of this circuit Z = E / i_o

                                       = 169.7 V / 0.8484 A

                                        = 200