How do resistivity and resistance differ from each other?
Answers
Resistance :
The electrical resistance of an object is a measure of its opposition to the flow of electric current. The inverse quantity is electrical conductance, and is the ease with which an electric current passes. Electrical resistance shares some conceptual parallels with the notion of mechanical friction.
Resistivity :
Electrical resistivity is a fundamental property of a material that quantifies how strongly that material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ.
Resistivity of a substance is numerically equal to the rod of that substance which is one meter long and one meter square in crossection.
Resistance is a constant quantity which is the ratio of potential difference applied accross the ends of the conductor to the current flowing through the conductor.
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