The battery is disconnected from a series RC circuit after the capacitor is fully charged and is replaced by an open switch. When the switch is closed,
A) the current through the resistor is always greater than the current through the capacitor.
B) the current through the resistor is always less than the current through the capacitor.
C) the current through the resistor is always equal to the current through the capacitor.
D) the capacitor does not allow current to pass.
E) the current stops in the resistor.

Question

Quizplus · Accepted Answer

In a series RC circuit, when the switch is closed after the capacitor is fully charged, the current that discharges from the capacitor flows through the resistor. Since they are in series, the current through the resistor is the same as the current through the capacitor at any instant in time.

The Battery Is Disconnected from a Series RC Circuit After