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 c)0vbp(9pfmm 9ii6ik wm.ftf, o3f3 96lcz ig;stq;9u2eg xswharge exerts a force of magnitude F on a negative point chao 3fte 2z99ls i;x;3g 6swcguqrge placed 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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