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An uncharged capacitor and a resistor are connected in series to a battery. If & = 9.00 V, C =
20 μF, and R = 2 Mº.
a. Find the time constant of the circuit.
b. Find the voltage across the resistor at the moment the switch is closed.
c. The maximum charge on the capacitor.
d. The voltage across the resistor 20 seconds after the switch is closed.
e. The time it takes the capacitor to be 50% charged.

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