What do you understand by resistivity of a conductor?
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Resistivity: It is defined as a measure of the resistance of a given size of a material that conducts electricity.
Here resistance is the force that opposes the flow of electrons.
R = ρl/A
R is Resistance.
ρ is Resistivity.
l is Length of the conductor.
A is Area of cross section of conductor.
The S.I units are Ω-m (ohm-metre)
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