| 用电介质镜像法计算线电荷与介质圆柱所形成的电场 |
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| 引用本文： | 王福谦.用电介质镜像法计算线电荷与介质圆柱所形成的电场[J].大学物理,2010,29(12). |
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| 作者姓名： | 王福谦 |
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| 作者单位： | 长治学院电子信息与物理系; |
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| 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.
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| 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 |
The electric field of line-charge near a dielectric cylinder calculated by dielectric image method |
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| WANG Fu-qian.The electric field of line-charge near a dielectric cylinder calculated by dielectric image method[J].College Physics,2010,29(12). |
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| Authors: | WANG Fu-qian |
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| Institution: | WANG Fu-qian(Department of Electronic Information and Physics,Changzhi University,Changzhi,Shanxi 046011,China) |
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| Abstract: | 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. |
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| Keywords: | dielectric image method line-charge dielectric cylinder electric potential distribution electric field intensity distribution |
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