摘要
利用δ函数,导出了点电荷、线电荷和面电荷模型在直角坐标、球坐标和柱坐标下的电荷体分布函数表达式,对处理一些具体的物理问题时十分有用.
By means of S function, some point, line and surface charge models are expressed into volume density functions in cylindrical and spherical coordinates. These expressions are useful in some special physical problems.
出处
《大学物理》
北大核心
2005年第5期31-33,共3页
College Physics
关键词
Δ函数
点电荷
线电荷
面电荷
δfunction
point charge
line charge
surface charge
volume density functions
