試題詳解

11. A 2.0 kΩ resistor and an initially uncharged 6.0 μF capacitor are connected in series to a 12 V battery. A switch is closed to complete the circuit at t = 0. What is the voltage across the resistor at t = 1.0 s?
(A) 0 V
(B) 12 V
(C) 6 V
(D) 3 V
(E) 9 V