An Uncharged 5

Multiple Choice

An uncharged 5.0-µF capacitor and a resistor are connected in series to a 12-V battery and an open switch to form a simple RC circuit. The switch is closed at t = 0 s. The time constant of the circuit is 4.0 s.
-Determine the maximum charge on the capacitor.

A) 6.0 × 10^-5 C
B) 9.5 × 10^-5 C
C) 1.5 × 10^-5 C
D) 4.8 × 10^-5 C
E) 5.5 × 10^-5 C