Physics Unit16: Electric Charge and Electric Field (id: 90dbca35c)

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]
A point charge of +Q is placed at the centroid of an 0zkfma; 1aog 3c,e gf9n sc0k2equilaterazzvh;(m9m v/ dl triangle. When a second charge of +Q is placed at one of the triangle's vertices, an electrostatic force of 4.0 N acts on it. What is the magnitude of the force that acts on the center charge due to a third charge of +Q placed at one of the othmmz/(9;d hv vzer vertices?

A. zero
B. $4.0 \; N$
C. $8.0 \; N$
D. $16 \; N$


参考答案:  B


本题详细解析: 暂无

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