A series RLC circuit has an impedance of 120 Ω and a resistance of 64 Ω. What average power is delivered to this circuit when Vrms = 90 volts?
A)36 W
B)100 W
C)192 W
D)360 W
E)12 W

Question

Quizplus · Accepted Answer

The average power delivered to a circuit is given by the formula P = Vrms^2 / R, where Vrms is the root-mean-square voltage and R is the resistance. In this case, Vrms = 90 volts and R = 64 ohms, so P = 90^2 / 64 = 120 watts.

A Series RLC Circuit Has an Impedance of 120 Ω