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範例:導體球與靜電感應

一不帶電之中空金屬球殼外徑為R，中心位於O點。今在球殼外距球心距離為d處放置一點電荷-Q(Q>0)，後接地達靜電平衡時,金屬球上會產生感應電荷（如右圖所示）。(1)產生之感應電荷量值為多少? (2)如圖感應電荷在P(距O為R/2)的電場大小?


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Posted in 電位能與電位.

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By admin – 2010 年 03 月 12 日

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