Electricity and Circuits:Parallel Plates (id: c8fc3fe21)

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

[单选题]
02.35: A 300 eV electron ispui(i bemm lp88rw,;r; a;ih/ aimed midway betwecowq.lxqf97tr d +d /-p*i;umx+ fn- pen two parallel metal plates with a potential difference of 400 V. The electron is deflected upwards and strikes the upper plate as shown. What would be the kinetic energy of the electron just beforednp+p.uxqlt-d c/mqf +;io-*f w9rx 7 striking the metal plate?

A. 360 eV
B. 400 eV
C. 500 eV
D. 700 eV
E. 740 eV


参考答案:  C


本题详细解析: 暂无

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