应用矩量法研究有限长带电直导线的电荷分布  

STUDY OF THE CHARGE DISTRIBUTION ON A FINITE CHARGED STRAIGHT WIRE WITH MOMENT METHOD

作　　者：刘冰 房文静 

机构地区：[1]中国石油大学(华东)理学院,山东青岛266555

出　　处：《物理与工程》2013年第2期16-19,共4页Physics and Engineering

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.

关 键 词：矩量法 有限长带电直导线 电荷密度分布 

分 类 号：O441[理学—电磁学]