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範例:載流長直導線與圓線圈的磁場

如圖所示，在一平面上有一導線彎成U型，其中PQ，ST為極長導線，QRS為半徑a的半圓，當導線上通以I的電流後，O點之磁場大小為何?[87中聯]


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Posted in 電流產生的磁場.

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By admin – 2010 年 03 月 15 日

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