Question

A voltage of 35 V is applied across a C-R series circuit. if the voltage across the resistor is 21 V, find the voltage across the capacitor?

a. 14V
b. 15V
c. 10V

Answer 1

The voltage across the capacitor is 14V

Step-by-step explanation:

In a series circuit, the total voltage supplied by the source is equal to the sum of the voltages across the individual components. In this case, the total voltage supplied is 35V, and the voltage across the resistor is 21V. Therefore, the voltage across the capacitor can be calculated by subtracting the voltage across the resistor from the total voltage:

Voltage across capacitor = Total voltage - Voltage across resistor

Voltage across capacitor = 35V - 21V = 14V

Therefore, the voltage across the capacitor is 14V.