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A simple RC circuit is shown below, where .50 MΩ and C= 1.50 μF. The capacitor has a charge of 90.0 μC before the switch is closed. The switch closes at 0 s.

A) Determine the time constant of the circuit

B) Determine the charge on the capacitor 3.00 s after the switch is closed.

C) Determine the time when the current through the resistor is 6,50 μA.

1468_Charge on the capacitor.jpg

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