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mathematical formula of resistivity. The resistivity Ω-m is the temperature dependent physical property of the material. Technically the rate of change of resistance is measured in terms of the temperature coefficient of the material.
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And so that gives me units of ohms times meters squared cause thats area divided by meters. Where p is resistivity R is resistance A is area of cross-section l is length of the material. As a reciprocal quantity conductivity is a measure of how easy a material permits the flow of current.
The resistivity Ω-m is the temperature dependent physical property of the material.
Resistivity of a material is defined in terms of measurement of the electric field E across it that generates current density J. The SI unit of its is Ohm-Meter. The formula for resistivity is given by r E J. Write the mathematical relation for the resistivity of material in terms of relaxation time number density and mass and charge of charge carriers in it.
