“关于有限长导线的磁场”一文的评述
Comment on `About the magnetic field of a finite wire'
摘要：
Charitat和Graner [2003 Eur. J. Phys.第24卷，267]，在计算有限长的载流直线产生的磁场时应用了毕奥-萨伐尔定律。
英文摘要：
A flaw is pointed out in the justification given by Charitat and Graner [2003 Eur. J. Phys. vol. 24, 267] for the use of the Biot--Savart law in the calculation of the magnetic field due to a straight current-carrying wire of finite length.
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