Electricity and Circuits: Dielectric Material (id: fd724877e)

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

[单选题]
15.45: A 6.00 μF parallel-ple:gp24u(irj.:oq e ihd p1 ;lkate capacitor is disconnected from a 12 kx1ogtg5. f5;d b+guoq(wjy6volt battery after being fully charged. A person now carefully inserts a dielectric material of constant K= 2 so that it fills one-half u(ox.od1y5w f6 q gb5gg;tjk+of the space between the plates as shown. How much work was done by the person while inserting the dielectric?

A. −81 μJ
B. −108 μJ
C. −144 μJ
D. −216 μJ
E. −288 μJ


参考答案:  B


本题详细解析: 暂无

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