本题目来源于试卷: Dielectric Material，类别为 美国物理杯赛(Physics Bowl)
[单选题]
15.45: A 6.00 μF parallel-plate capacitor is disconnected from a 12 :emj+q2tsx cho5lp. . (9b 1ag;yolf 8jaflq .,ip0m u volt battery after being fully charged. A person now carefully inserts a dielectric material of constant K= 2 so that it fills one-half of the space between the plates as shown. How much work was done by the pe ff;b8l 1( j9oqa ,lu yiag.0pmrson 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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