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在正多边形每个顶角上各放置一个等量同种点电荷,则中心处合场强为零,对于这一结论本文给出了3种证明方法;并进而分析了正多边形每个边均匀带电等情况.
Placing an equal amount of the same point charge on each vertex of a regular polygon, the combined field strength at the center is zero. For this conclusion, three kinds of proof methods are given; and then each side of the regular polygon is evenly analyzed. Live and so on.