Question

During charging and discharging of a capacitor:-

• A. Current flows in the circuit, which is constant during charging or discharging duration
• B. No current flows in the circuit
• C. Current flows in the circuit and is varying with time
• D. During chargung current is constant but while discharging current is variable

Answer 1

The correct option is C Current flows in the circuit and is varying with time

During charging of capacitor, the charge on capacitor increases and hence voltage across capacitor increases as, $Q=CV$. Due to increase in voltage, the flow of current increases.

Similarly, during dicharging of capacitor, the charge on capacitor decreases and hence voltage across capacitor decreases. Due to decrease in voltage, the flow of current also decreases.

So current flows in circuits and is varying with time.