本题目来源于试卷: Electrostatic Force and Electric Field，类别为 美国物理杯赛(Physics Bowl)
[单选题]
08.06: A positive point charge e pw(/ug yem,kq(86 cphxerts adbak8j(f/briu7l364 hu z4ir force of magnitude F on a negative point charge placea ul(b7 r/ikzih3fjdb44 ru86d a distance x away. If the distance between the two point charges is halved, what is the magnitude of the new force that the positive point charge exerts on the negative point charge?
A. $4F$
B. $2F$
C. $F$
D. $F/2$
E. $F/4$
参考答案: A
本题详细解析:
暂无
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