what is resistivity?write its unit
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Resistance of a conductor of unit lenght and having unit cross-section area.
It's SI unit is ohm m...
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Resistivity definition: The electrical resistivity is the electrical resistance per unit length and per unit of cross-sectional area at a specified temperature. The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m). It is commonly represented by the Greek letter ρ, rho.
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