2005/04/18 | 电导率[Electrical Conductivity]
类别(Ω〖物理〗) | 评论(0) | 阅读(25) | 发表于 15:40
The electrical conductivity of an electrical conductor is defined as

where is the resistivity. For a body of length L, resistance R, and cross sectional area A, the electrical conductivity is given by

For a metal, increases at lower temperatures.
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