静电场与恒定电流场的转化与统一

摘要

本文讨论静电场和恒定电流场。目前教材中这两部分是完全独立的。正是爱因斯坦的相对论把两者统一起来，即没有绝对运动，也没有J→、绝对静止。文中把电流J→和电荷P看作统一的四维矢量。研究表明：在运动坐标x＇r＇y＇系中，电介质内可以存在电流，；而导电媒质内则可存在电荷p（尽管极小），这就是静电场与恒定电流的相互转化和统一。文中还涉及Poynting矢量S→的佯谬。%This paper discusses the static electric field and constant current field which are independent and have no relationship in the textbooks available. By using the Einstein relativity, the static electric field and constant current field can be uniformed. There is formed as four-dimensional x＇o＇y＇ and electric charge p which is minor can exist in conducting medium, a fact which means static electric field and constant current field can transform and uniform. This paper also points out the paradox of Poynting vector S.