Physics Unit16: Electric Charge and Electric Field (id: 146c09db1)

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]
Charge +2q is placed at the origin rw htw8sq3a,e5+y m:w6sykkr-z - rs- and charge -q is place .edak6dlz2b+ d at x = 2a. Where can a third positive charge +q be placed so that the force on itakl6+dbd2 .z e is zero?

A. $3.4 \; a$
B. $6.8 \; a$
C. $8.6 \; a$
D. $9.3 \; a$


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便