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CBSE - X - Physics - Electricity

Could you explain me the difference of resistance and resistivity

Asked by tkguha 15th May 2016, 10:11 AM
Answered by Expert


The resistance of a conductor is the ratio of potential difference across its ends to the strength of current flowing through it. Resistance means the obstruction to the flow of electrons through it. The unit of resistance is ohm denoted as Ω.
Resistivity is defined as the resistance offered by a cube of the material of side 1 m when the current flows perpendicular to the opposite faces of the cube. It depends on the nature of the material of the conductor. The SI unit is ohm. metre denoted as Ω.m
Answered by Expert 16th May 2016, 10:31 AM

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