Problem: 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?

FREE Expert Solution

The time constant of a capacitor circuit is given by:

T=RC

The charge stored in a capacitor and time are related by:

Q=Q0e(-t/T)t=-T ln (QQ0)

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Problem Details

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?

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