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 prot 6u,yztn g)j.mvc0x v+xj009f.mpm vnpd mp ac*s:s84jz1 rbmbn(5m :on are separated by a distance of 1.0 m. What happens to the magnitude of the force on the f:mb: zb(r1pjc*4msnp58sm d a irst electron 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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