| 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,罗世彬.线电荷与介质圆柱所形成的电场[J].大学物理,2010,29(3). |
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| 作者姓名： | 王福谦 罗世彬 |
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| 作者单位： | 1. 长治学院,电子信息与物理系,山西,长治,046011
2. 山西师范大学,物理与信息工程学院,山西,临汾,041000 |
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| 摘 要： | 在线电荷电场的电势调和展开式的基础上,得出线电荷电场内存在介质圆柱时电势的级数解.并以此来分析长直线电荷与介质圆柱所形成的电场的电像,从而给出电势与电像有关的解析表达式,进一步得出等势线(面)与电场线方程,并利用软件MATLAB绘制出电场线和等势线图予以验证.
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| 关 键 词： | 线电荷 介质柱 电势分布 场强分布 |
The electric field of a linear charge and a dielectric cylinder |
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| WANG Fu-qian,LUO Shi-bin.The electric field of a linear charge and a dielectric cylinder[J].College Physics,2010,29(3). |
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| Authors: | WANG Fu-qian LUO Shi-bin |
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| Institution: | 1.Department of Electronic Information and Physics;Changzhi University;Changzhi;Shanxi 046011;China;2.College of Physics and Information Engineering;Shanxi Normal University;Linfen;Shanxi 041000;China |
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| Abstract: | On the base of electrical image process to a dielectric cylinder,the electric field of both a line charge and a dielectric cylinder is calculated,and the distributions of electric potential and field intensity are obtained.Both the equipotential line and electric field line map are plotted by mathematical software "MATLAB". |
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| Keywords: | linear charge dielectric cylinder electric potential distribution electric intensity distribution |
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