我可以理解电场线,但为什么能用求相距为2a的等量异种点电荷间的相互作用力来“等效”代替求金属板对Q的作用力?两个点电荷之间的距离不是大于正点电荷到金属板的距离的吗?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 13:49:13
![我可以理解电场线,但为什么能用求相距为2a的等量异种点电荷间的相互作用力来“等效”代替求金属板对Q的作用力?两个点电荷之间的距离不是大于正点电荷到金属板的距离的吗?](/uploads/image/z/11034417-57-7.jpg?t=%E6%88%91%E5%8F%AF%E4%BB%A5%E7%90%86%E8%A7%A3%E7%94%B5%E5%9C%BA%E7%BA%BF%2C%E4%BD%86%E4%B8%BA%E4%BB%80%E4%B9%88%E8%83%BD%E7%94%A8%E6%B1%82%E7%9B%B8%E8%B7%9D%E4%B8%BA2a%E7%9A%84%E7%AD%89%E9%87%8F%E5%BC%82%E7%A7%8D%E7%82%B9%E7%94%B5%E8%8D%B7%E9%97%B4%E7%9A%84%E7%9B%B8%E4%BA%92%E4%BD%9C%E7%94%A8%E5%8A%9B%E6%9D%A5%E2%80%9C%E7%AD%89%E6%95%88%E2%80%9D%E4%BB%A3%E6%9B%BF%E6%B1%82%E9%87%91%E5%B1%9E%E6%9D%BF%E5%AF%B9Q%E7%9A%84%E4%BD%9C%E7%94%A8%E5%8A%9B%3F%E4%B8%A4%E4%B8%AA%E7%82%B9%E7%94%B5%E8%8D%B7%E4%B9%8B%E9%97%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%8D%E6%98%AF%E5%A4%A7%E4%BA%8E%E6%AD%A3%E7%82%B9%E7%94%B5%E8%8D%B7%E5%88%B0%E9%87%91%E5%B1%9E%E6%9D%BF%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%9A%84%E5%90%97%3F)
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