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 separated by a distancectl /jh jg)rk,c;1 yl) of 1.0 m. Wrloj y8v6k68t,qqarw157w tihat happens to the size of the force on the proton i7o q5,1jy6 wawrq8ivt6rlt8kf the electron is moved 0.50 m closer to the proton?
A. It increases to 4 times its original value.
B. It increases to 2 times its original value.
C. It decreases to one-half its original value.
D. It decreases to one-fourth its original value.
参考答案: A
本题详细解析:
暂无
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