Question
Distinguish between resistance and resistivity.

Answer

a. Resistance is the property of the conductor, while resistivity is the property of the material of the conductor.
b. Resistance of a conductor is the opposition to the flow of electric current through it. resistivity of a substance is the opposition to the flow of electric current by a rod of that substance which is 1 m long and $1 m^2$ in cross section.
c. Resistivity of a substances depends on the nature of the substance and temperature.
d. Resistivity of a substance on the nature of the substance and its temper. it does not depend the length or thickness of the conductor.

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