摘要
利用电介质镜像法计算线电荷与介质圆柱体所形成的电场,给出电势与场强的解析表达式,进一步得出等势线与电场线方程,并利用软件MATLAB绘制出电场线和等势线(面)图予以验证.
The electric field of line-charge near a dielectric cylinder is calculated by employing the dielectric image method,and particularly,the expressions of electric potential and the electric field intensity in explicit forms are generated.Further,the equations of both equipotential line and electric field line are obtained.Finally,the maps of equipotential and electric field lines are plotted by mathematical software ＂MATLAB＂ for proving the results.
出处
《大学物理》
北大核心
2010年第12期12-17,共6页
College Physics
关键词
电介质镜像法
线电荷
介质圆柱体
电势分布
场强分布
dielectric image method
line-charge
dielectric cylinder
electric potential distribution
electric field intensity distribution
