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A capacitor with an initial potential difference of 100 V is discharged through a resistor when a switch between them is closed at t = 0. At t = 10.0 s, the potential difference across the capacitor is 1.40 V.

(a) What is the time constant of the circuit?

s

(b) What is the potential difference across the capacitor at t = 15.0 s?

V

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