2005/04/02 | 电位能[Electric Potential Energy]
类别(Ω〖物理〗) | 评论(0) | 阅读(32) | 发表于 19:32
The electric potential energy stored by two charges and a distance r apart is given in cgs by
(1)

and in MKS by
(2)

where is the permittivity of free space.
For n charges in cgs,
(3)

and in MKS,
(4)

For a continuous distribution,
(5)

where is he voltage at point r due to all other charge.
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