电导率[Electrical Conductivity] - 揭示大自然的规律

揭示大自然的规律

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电导率[Electrical Conductivity] [2005-4-18]
iamet 发表在 Ω〖物理〗
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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