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Q.6. What is electrical resistivity of a material? What is its unit? Describe an experimentally to study the factors on which the resistance of conducting wire depends?
 

Dear student,
As per the definition, resistivity is the resistance of unit cube of the material. Resistivity is the intrinsic property of the material of the conductor due to which it offers resistance. It depends on the relaxation time, the number density of electrons, the charge of electrons and the mass of the electrons.

 

It is related to the resistance as:

Its unit is 

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