In a series RC circuit, ET = 240 V, R = 40 Ω, and XC = 30 Ω. What is ER?
A) 144 V
B) 157.14 V
C) 192 V
D) 202.86 V

Question

Quizplus · Accepted Answer

In a series RC circuit, the voltage across the resistor (ER) can be found using the formula ER = ET * (R / Z), where Z is the impedance. The impedance Z = √(R^2 + XC^2) = √(40^2 + 30^2) = √(1600 + 900) = √2500 = 50 Ω. Therefore, ER = 240 V * (40 Ω / 50 Ω) = 192 V.

In a Series RC Circuit, ET = 240 V, R