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範例:運動電荷的磁效應[90預試卷]

一半徑為R之絕緣體圓環上，每隔30o嵌入一帶電荷q之質點，如圖所示。當整個圓環對其中心軸(通過環心、垂直環面)以等角速度ω快速轉動時，相當於環上有一穩定電流，試問圓環中心點的磁場大小為何?([90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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