摘要
文章采用矩量法数值计算有限长带电直导线的电荷密度分布.结果表明,带电直导线的电荷密度分布不均匀,导线两端电荷密度大,中间电荷密度小,正电荷密度呈"∪"分布,负电荷密度呈"∩"分布,计算结果较为精确并具有良好的收敛性.
The charge density distribution on a finite charged straight wire is obtained with the moment method. The result shows that the charges are distributed non--uniformly on a finite straight wire. The charge densities distributed on the ends of the wire are larger than that distributed on the middle part of the wire. The density distributed on the wire has a shape of ＂∪＂ for positive charges and a shape of ＂∩＂ for negative charges. The calculated result obtained in the paper has good accuracy and ＂convergence.
出处
《物理与工程》
2013年第2期16-19,共4页
Physics and Engineering
关键词
矩量法
有限长带电直导线
电荷密度分布
moment method a finite charged straight wire charge density distribution
