2005/06/17 | 电阻率[Resistivity]
类别(Ω〖物理〗) | 评论(1) | 阅读(93) | 发表于 21:55
Resistivity is defined by

where is the electrical conductivity. Unlike resistance R, which is given in terms of by

for a conductor of length L and cross sectional area A, resistivity is a characteristic property of a given conductor.
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