Question

26. Write the relation between resistance and electrical resistivity of the material of a conductor
in the shape of a cylinder of length (1) and area of cross-section(A).​

Answer 1

Answer:

Resistance depends on the following factors :

R is directly proportional l ( length)

R is inversely proportional to A (Area of Cross section)

R depends on Temperature and Nature of the material

Resistivity depends only on Nature of material and temperature of the conductor

R = rho * L / A    (rho - Resistivity)