Charging and Discharging of capacitor (id: 702717575)

本题目来源于试卷: Charging and Discharging of capacitor，类别为 美国物理杯赛(Physics Bowl)

[单选题]
14.38: In the circuit w+5 ceq: z o51sjs .d51fjokvlshownkw fvv 8/z4nl-xo6xz/,the switch S has been left open for a very longtime. All circuits elements are considered to be ideal. Which one of the following statements best describes tx8v x/vz4-/k onlf6wzhe behavior of the current through the switch S once it is closed?

A. The current initially is 12 mA and decreases to a steady 3 mA.
B. The current initially is 3 mA and increases to a steady 12 mA.
C. The current initially is 9 mA and decreases to a steady 3 mA.
D. The current initially is 6 mA and decreases to a steady 3 mA.
E. The current is a steady 3 mA.


参考答案:  A


本题详细解析: 暂无

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