Question

Write the relation b/w resistance and resistivity of the material of a conductor
in the shape of cylender of lenght I' and area of cross-section 'A'. Hence
derive the SI unit of electrical resistivity.​

Answer 1

Explanation:

The above is the process of the given

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Answer 2

Answer:

Explanation:

The unit of resistivity is  ohm- metre

Relation between resistance and electrical resistivity of the material of conductor  in the shape of a cylinder of length and area of cross section  is

Here, R = resistance

R= rhol/A.....(1)

put the unit of R, A and I in equation(1)

rho=ohm-m^2/m

rho=ohm-m