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]
13.45: The switch S in aalqof5vko ga1e3q2 8v*c + 6sk3d e*c the RC circuit shown is closed at time t kui2/w cy3xl7 =0. All circuit elements are ideal and R=10.0Ω, C=2.20 F and ξ = 12.0 V. The capacitor is initially uncharged. How long after the switch is closed is the voltage ku/yi x7 3lwc2across the capacitor three times as large as the voltage across the resistor?
A. 22.0s
B. 24.2s
C. 30.5s
D. 36.0s
E. 54.7s
参考答案: C
本题详细解析:
暂无
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