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範例:冷次定律[81日大]

一橫置之日字型電路,以等速度由磁場為零的空間進入一均勻分佈的磁場中(如圖所示)。則導線ab間的電流I(ab為正)隨時間的變化可由下列何者正確? [81日大]

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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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