摘要
本文用几何方法导出静电场中沿力线电场量值的常微分方程（ｄＥ／ｄｎ）＋２Ｈ（ｎ）Ｅ＝０．并求得了它在特定情况下的准确解，又给出了一些近似解，发现当用于边界上时，由此微分方程不可能获得导体面电荷密度的精确表达式。
In an electrostatic field the relationship of the variation of the field magnitude along a flux line(dE/dn)+2H(n)E=0 has been derived by the geometrical method. Its exact and approximate solutions of field magnitudes can be obtained in a specific condition. It is noted that when it is used on a boundary of the field ,the solution can not be used to obtain any exact formulation for the surface charge density on a coductor.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1994年第6期104-107,共4页
Acta Electronica Sinica
关键词
静电场
等位面
静电问题
电荷密度
Electrostatic field
Equipotential surface
Surface charge density
