difference bw resistance and resistivity
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The resistance is the ratio of the length and cross-section area of the conductor, whereas the resistivity of the material is the ratio of the product of the resistance and area to the length of the conductor.
The resistance is represented by the symbol R whereas the resistivity is represented by the symbol ρ.
The SI unit of the resistance is ohm, and the SI unit of resistivity is ohm-meter
The resistance of the material depends on the length, cross-section and area of conductor whereas the resistivity depends on the nature and temperature of the material.