Based on MATLAB simulation programming applied in the electric field of uniformly charged line , It draws the electric field lines and equipotential lines (surfaces) of the electric field ,and then applied to some simple linear charge com binations .%基于M ATLAB编程仿真模拟有限长均匀带电线段激发电场的空间分布，绘制能从几何角度直观形象反映电场分布的电场线与等势线（面）并将其应用于几种简单直线电荷组合情况。
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