本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 国际高中通用物理
[单选题]
An electron and a prtb h 46*sakxena0kior uc3)pre p-,6:oton are 89 mpw+y.zqedg6 y7uzg jc2/q separated by a distance of 1.0 m. What happens to the magnitude of the force on the first electron if a second electron is placeqq2 8c6+9gyywgzm /dpjz7e. ud next to the proton?
A. It doubles.
B. It does not change.
C. It is reduced to half.
D. It becomes zero.
参考答案: D
本题详细解析:
暂无
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