How long does it take to reduce the capacitor’s charge to 10 μC?
A 20 μF capacitor initially charged to 25 μC is discharged through a 1.5 kΩ resistor. How long does it take to reduce the capacitor’s charge to 10 μC? Answer Calculate the time constant of the circuit. The expression of the time constant of the circuit is expresses as follows, \tau=R C Substitute 1.5 \mathrm{k}