大学物理 ›› 2006, Vol. 25 ›› Issue (4): 60-60.

• 著者文摘 • 上一篇    

旋转二次曲面线圈轴线上的磁场

张定   

  1. 北京大学物理学院,北京100871
  • 出版日期:2006-04-25 发布日期:2006-04-20

The magnetic flux density along symmetric axis of the quadric surface of revolution

  • Online:2006-04-25 Published:2006-04-20

摘要: 从普通物理电磁学角度出发,分别讨论了球状、椭球状、旋转抛物面状及双曲面状线圈旋转对称轴线上的磁场问题,最后得到了一个关于旋转二次曲面对称轴线上磁场的普适表达式.

关键词: 均匀磁场, 二次曲面, 旋转对称轴

Abstract: Basing on a problem in The Feynman Lectures (Vol. 2), it is proved that the magnetic flux density along the axis of the ellipsoid of revolution which has coil on its surface is a constant under the condition which Feynman provided. Then it turned out that this case is suitable for all the quadric surfaces of revolution. At last a general formula is obtained applicable to them all.

Key words: magnetic field, quadric surface of revolution, symmetrical axis of revolution

中图分类号: 

  • O441.2