RC Circuits: A 8.0-?F uncharged capacitor is connected in series with a 6.0-k? resistor, an ideal 20-V dc source, and an open switch. If the switch is closed at time t = 0.0 s, what is the charge on the capacitor at t = 9.0 ms?
A. 0 C
B. 37% of the minimum charge
C. 17% of the maximum charge
D. 68% of the minimum charge
E. 96% of the maximum charge
Answer: C
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