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範例:電磁感應與冷次定律[82夜大]

如圖，一長直導線上的電流i為at(a>0)，t表時間。當此電流向下流時，在其左方的封閉迴路內(a)感應電流 (b)所受的磁力合力，性質各為何?[82夜大]

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Posted in 歷屆物理考題, 電磁感應與冷次定律.

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By admin – 2010 年 03 月 26 日

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