. 33. "Electrical resistivity is a characteristic property of the material." Explain this statement.
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Because electrical resistivity depends on nature and temperature of conductor.
Explanation:
Electrical resistivity: It is a property of material.
It is the strength of material to oppose the flowing current in the conductor made by the material.
It does not depends on shape and size of conductor.
It depends on nature and temperature of the conductor.
The relation between resistance and resistivity is given by
R=\rho\frac{l}{A}
Where
R= Resistance of conductor
A=Cross section area of conductor
l=Length of conductor
\rho=Resistivity of material
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