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多馬尼夫卡區 是烏克蘭的一個區，位於該國南部，由尼古拉耶夫州負責管轄，首府設於多馬尼夫卡，面積1,458平方公里，2013年人口25,862，人口密度每平方公里17.7人。 这是一篇與尼古拉耶夫州地理相關的小作品。你可以通过编辑或修订扩充其内容。 查 论 编 This page is only for reference, If you need detailed information, please check here

This article is about electrical conductivity in general. For other types of conductivity, see Conductivity. For specific applications in electrical elements, see Electrical resistance and conductance. A measure of a substance's ability to resist or conduct the flow of electric current Electrical resistivity (also known as specific electrical resistance , or volume resistivity ) is a fundamental property of a material that quantifies how strongly that material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm-metre (Ω⋅m). [1] [2] [3] As an example, if a 1 m × 1 m × 1 m solid cube of material has sheet contacts on two opposite faces, and the resistance between these contacts is 1 Ω, then the resistivity of the material is 1 Ω⋅m. Electrical conductivity or specific conductance is