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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]
[詳解]
Posted in 電流產生的磁場.
Tagged with 安培定律, 載流圓線圈, 載流長直導線.
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By admin – 2010 年 03 月 15 日
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