distinguish resistance and resistivity..
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The electrical resistance of a conductor of electricity is defined as the obstruction offered by the conductor to the flow of electric current across any of its cross section. It is numerically obtained as the ratio of the electric potential difference applied across the ends of the conductor to the electric current flowing through it...
The electrical resistivity or the specific electrical resistance of a substance is defined as the electrical resistance between the opposite faces of unit volume of the substance...
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Answer:it is the property of a material by which it opposes the flow of charge or heat through it.
Unit: ohm
Resistivity:it is the resistance of a conductor having unit length and unit area of cross section.
Unit:ohm m
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