gc textbook chapter 17 Electric Potential (id: aafe2aa42)

本题目来源于试卷: gc textbook chapter 17 Electric Potential，类别为 通用国际物理

[填空题]
Two point charges, $3.0\mu C$ and $-2.0\mu C$ are placed 5.0 cm apart on the x axis. At what points along the x axis is
(a) the electric field zero    cm leftof $q_2$
(b) the potential zero? Let $V\,=\,0$ at $r\,=\,\propto$.

参考答案: 22±2%


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