摘要
在平面内,根据共线点电荷的电场线方程来绘制的电场线,并不满足电场线的基本特征.为解决此问题,笔者提出了将电场从三维空间降维映射到二维空间的方法,并提出了“映射电场”等概念,进而在平面内绘制出了共线或非共线点电荷的“映射电场线”,它们完全满足电场线的基本特征,解决了采用常规方法在平面内绘制电场线遇到的困难.
In the plane,the electric field lines drawn according to the electric field line equation of the collinear point charges do not satisfy the basic characteristics of electric field lines.To solve this problem,the author proposes a method to reduce the dimension of the electric field from three-dimensional space to two-dimensional space,And put forward the concept of"mapping electric field",and then drawing the"mapping electric field lines"of collinear or non-collinear point charges in the plane.They fully meet the basic characteristics of electric field lines,and solve the problem of using conventional methods in the plane.Difficulties encountered in drawing electric field lines.
作者
岳国联
黄绍书
Yue Guolian;Huang Shaoshu(No.3 Middle School of Liupanshui,Liupanshui,Guizhou 553000)
出处
《物理通报》
CAS
2021年第8期78-83,共6页
Physics Bulletin
关键词
静电场
电场线
映射电场
电场线方程
electrostatic field
electric field lines
mapping electric field
electric field line equation