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 proton are (ke6x p wopy,3tvoc(m5w 3d b6separq (qay 4lab n:m)j4xj/v,gyi-ated by a distance of 1.0 m. What happens to the magnitude of the force on the first m ql)q(b/4y :-i xjag,vja4ynelectron if a second electron is placed 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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