An LRC circuit is running at it's resonance frequency with 250 volts rms what is the current through the resistor if R = 500 ohms,L = 60 H,and C = 0.2 micro-Farads?
A)0.5 mA
B)0.5 A
C)2.5 A
D)2.5 mA
E)40 A

Question

Quizplus · Accepted Answer

At resonance frequency in an LRC circuit, the inductive reactance (XL) and capacitive reactance (XC) cancel each other out, leaving only the resistive component (R) to oppose the current. The current (I) can be calculated using Ohm's Law: I = V/R, where V is the voltage across the resistor and R is the resistance. Given V = 250 volts and R = 500 ohms, I = 250 / 500 = 0.5 A.

An LRC Circuit Is Running at It's Resonance Frequency with 250