The calculation of the magnetic field produced by a loop current using the Biot–Savart law is a very typical exercise in introductory university physics. However, the cases studied are limited, in most textbooks, only the circular arrangement is treated. In this article, we calculate the magnetic field of an elliptical loop current along an axis that passes through its centre. This calculation uses physical concepts and mathematical techniques that would be accessible to an average freshman student.

中文翻译：

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椭圆环电流轴上的磁场

使用Biot-Savart定律计算由回路电流产生的磁场是大学物理入门中非常典型的练习。但是，所研究的案例是有限的，在大多数教科书中，只处理了循环安排。在本文中，我们计算了一个椭圆环电流沿穿过其中心的轴的磁场。此计算使用的是普通大一学生可以使用的物理概念和数学技术。