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A 10.0 μF capacitor initially charged to 30.0 μC is discharged through a 1.80 kΩ resistor....

A 10.0 μF capacitor initially charged to 30.0 μC is discharged through a 1.80 kΩ resistor. How long does it take to reduce the capacitor's charge to 15.0 μC ?

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