A resistor , an inductor and a capacitor are connected in series to a (rms) ac…

PHYSICS · Subjective · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits

Problem

A resistor

R=30\,\Omega

, an inductor

L=0.20\,\text{H}

and a capacitor

C=50\,\mu\text{F}

are connected in series to a

220\,\text{V}

(rms) ac source. (a) Calculate the rms current in the circuit when the supply frequency is

50\,\text{Hz}.

(b) Calculate the rms current when the frequency is raised to

100\,\text{Hz}.

(c) Which of the two frequencies gives the larger current? Support your answer with the numerical values of the corresponding impedances.