Electrostatic Force and Electric Field (id: ae3f3a387)

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]
95.36: Assume the electric pdb+9ua2f.2fkf -b8ung qnco9 otential is zero at i)xcqluu w e8o.,*f7obnfinity. A point charge of +4.0μC is placed on the negative x-axis 0.20 m to the left of the origin, as shown in the accompanying figure. A second point charge q is placed on the positive x-axis 0.30 m to the right of the origin. The net electric potential at the o) 7uqwe8bo*uxc.lf, origin is also zero. What is q’s charge?

A. − 9.0 μC
B. − 6.0 μC
C. 0
D. 6.0 μC
E. 9.0 μC


参考答案:  B


本题详细解析: 暂无

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