几个特殊点电荷系统的电力线方程

Equations of Electric pewer Line of Some specific Point Charge Systems

本文利用解析几何的知识和电力线上每一点的切线方向和该点场强方向一致的特点,即E×dl=0,首先建立电力线的微分方程。然后着重导出一对等量异号点电荷系统的电力方程,它对电力线的教学有一定的参考价值。

By using the knowlege of analytic geometry and the characteri stic of tangent directions at every point of electric field teing the same as that of the electric field, intensityi .e.the author first establishes the equations of the electric power lines, then derives a pair of electric power equations of a tric diple, point cleotnic hange system They are egual in quantity and dillenent in tign This paper has certain value as a reference for teaching electric field lines.