电子力矩[Electric Monopole] - 达人(其实～我是卧底，来自外星)

2005/01/07 | 电子力矩[Electric Monopole]
类别(Ω〖物理〗) | 评论(0) | 阅读(18) | 发表于 14:01: For an electric charge q (i.e., an electric monopole), the voltage (a.k.a. electric potential) in cgs is given by
(1)

where r is the distance from the charge. In MKS, the corresponding formula is
(2)

where is the permittivity of free space. This function is plotted in the left figure above.

Similarly, the electric field E at a point r relative to the point charge in cgs is given by
(3)

In MKS, the corresponding equation is
(4)

where is a fundamental constant called the permittivity of free space. This function is plotted as the vector field in the right figure above.; 0