因果关系与对称性原理及其电磁学应用

The cause and effect and the principle of symmetry and its application in the electromagnetic fields

利用电磁场的原始定义,讨论了电势和矢势等描述电磁场系统的物理量在空间反射、时间反演操作下的变换性质,利用对称性原理讨论了某些对称条件时电磁场的分布情况,指出只有严格意义上的物理定律才能应用对称性原理.

By utilizing the (original) definition of the electromagnetic fields,the transformation property of the electromagnetic field's state functions under the space operaxion or time operation is discussed.The eletromagnetic field's distribution from the charge's distribution is got after the principle of symmetry is utilized.Finally it is pointed out that only the really physics law can be discussed using the principle of symmetry.