本题目来源于试卷: Physics Unit16: Electric Charge and Electric Field，类别为 通用国际物理
[单选题]
An electron and a proton d8qy*c1 t4l ymk73i vssb en,u,b/1 cxabtnfa):o j+b(mt4/n+n4iw* wm dh c)yre separated by a distance of 1.0 m. What happens to the magnitude of the force on the proton if a second electron n b no+ +)4ahf dy/4(c jnww*mti:mbt)is placed next to the first electron?
A. It quadruples.
B. It doubles.
C. It will not change.
D. It goes to zero.
参考答案: B
本题详细解析:
暂无
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