柱坐标下毕奥-萨伐尔定律及其应用

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中图分类号：0441 文献标志码：A 文章编号：2095-2945（2026）03-0009-04

Abstract：BeginingwiththediferentialfomoftheBiot-Savartlaw，theexpressionoftheBiot-Savartlawincylindrical coordinatesisderivedindetail，andthisformisusedtocalculatethemagneticfielddistributioninspacegeneratedby axisymmtriccurnt-carryingwiressuchasfinitlenghstraightwiescurentcarryingciularoils，andifitelylongrt carryingcylinders.TheresultsdemonstratethatthecylindricalcordinaterepresentationoftheBiot-Savartlawofersgreater conveniencefordeterminingmagneticfieldsproducedbyaxiallysymmetriccurentconductors.Notably，incalculatingthe magneticfieldgeneratedbyacurent-caryingcircularcoilatanypointinspace，thefinalresultcanbeobtainedbyonly calculating the integral of the radial and angular components of the magnetic field.

Keywords：Bot-Saartlaw;cyidicalcoodinate;axialsymmetry；curent-carryingcirularcoilurent-caingcylinder

毕奥-萨伐尔定律是大学物理教学中的重要内容之一，也是计算载流导线在空间产生的磁场分布的重要方法之一[1-2。（剩余3071字）