2005/01/11 | 电极化[Electric Polarization]
类别(Ω〖物理〗) | 评论(0) | 阅读(29) | 发表于 14:06
The electric polarization P is defined as the difference between the electric fields D (induced) and E (imposed) in a dielectric due to bound and free charges, respectively. In cgs,
(1)

which can be written in terms of the electric susceptibility as
(2)

In MKS,
(3)

where is the permittivity of free space.
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