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A、B兩物體摩擦後,A將電子轉移給B,則
A帶負電,B帶正電
A帶正電,B帶負電
A、B均帶正電
A、B均帶負電
A、B兩物體互相吸引,則A、B的電性可能為?
A帶正電、B帶負電
A帶負電、B帶正電
A帶負電、B電中性
絕緣體 (a) 導電,是因為內部的電荷 (b) 自由移動
以帶正電的物體,分別用感應起電/接觸起電的方式,可使不帶電金屬球產生何種電性?
負電/正電
正電/負電
正電/正電
負電/負電
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