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範例:靜電庫侖力與靜力平衡

如右圖所示，A、B為固定電荷，電量分別為+mq及-q，相距為d，則(1)若置一電荷於C處，並使其所受淨電力為零，則BC間的距離為若干?(2)在(1)中若A、B可自由移動，則C的電量為多少時，可使A、B、C成靜電平衡?


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Posted in 庫侖定律.

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By admin – 2009 年 11 月 27 日

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