A 4.0x10^-6 Farad capacitor is connected in series with a 2000 ohm resistor across a 20V-DC power supply and an open switch. If the switch is closed at t=0 seconds what is the charge on the capacitor at t = 9 milliseconds?
Options:
0 C
68% of the maximum charge
68% of the minimum charge
96% of the maximum charge
37% of the minimum charge