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範例:電流磁效應與必歐沙伐定律[91預試卷]

一條導線彎折如圖所示，P 點到導線的距離遠大於線段乙的長度，所以P 點的張角很小。導線通過的電流為I ，假設甲、乙、丙的線段長度各為a、b、c，則P 點的磁場強度約為下列何者?(。[91大考中心]


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Posted in 指考模擬試題, 指考預試卷, 電流產生的磁場.

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By admin – 2010 年 03 月 15 日

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