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 proox+i94ab+ n.cun ok .ld)hsi lv -lv.6ton:y pr7iql )cs.u;y(b0s0 moui are 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 placed next to the proto 7sb.q:;l0(c riyis mpuo)y 0un?
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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