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範例:導體靜電感應與靜電平衡[83北聯]

圖中,一不帶電之中空金屬球外徑為R,今在球殼外距球心為3R處放一點電荷-Q(Q>0), A,B,C,D四點分別在金屬球表面,O為球心,E,F,兩點距球心R/2,VDD點電位,EEE點電場餘類推,則下列敘述何者正確? (A)VD>VB (B)VB=VC(C)EE=EF (D)VE=VF (E) Eo=EB83北聯】


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