An RC circuit is connected across a DC voltage source through an open circuit and a switch. As soon as the switch is closed, the charge on the capacitor increases but the voltage across it decreases as a function of time.

Question

Quizplus · Accepted Answer

As soon as the switch is closed, the capacitor starts to charge up towards the DC voltage source, so the voltage across it increases but the charge on it increases as a function of time. The voltage across the capacitor can only decrease if there is a discharge path, such as a resistor connected in parallel.

An RC Circuit Is Connected Across a DC Voltage Source