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 origkw :mwr4:( nbvin and charge -q i-cz 6*mhwvcaa2u7q ,r*- h xaws placed at x = 2a. Where can a third positive charge +q be placed so that the force on it is zer 2-a x*qha6- vcwu7ma* w,hzcro?

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

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