Electricity and Circuits: Capacitor (id: 19adc0c7a)

本题目来源于试卷: Electricity and Circuits: Capacitor，类别为 美国物理杯赛(Physics Bowl)

[单选题]
13.45: The switch S in th9er q.n9 yrxy1 u5o2yue RC circuit shown is cc-gri3jxl:, o losed at time t=0. All circuit elements are ideal and R=10.i-c3rjx,:lg o0Ω, C=2.20 F and ξ = 12.0 V. The capacitor is initially uncharged. How long after the switch is closed is the voltage across 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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