Material on Basis of Resistivity

What Is Resistivity ( Rpropto l ) ( Rpropto frac{1}{a} ) ( text{So, }Rpropto frac{ell }{a} ) ( text{or }R=rho times frac{ell }{a}text{ }………text{ (i)} ) where ρ (rho) is called resistivity of the material of conductor. If,        l = 1 m and…

What Is Resistivity ( Rpropto l ) ( Rpropto frac{1}{a} ) ( text{So, }Rpropto frac{ell }{a} ) ( text{or }R=rho times frac{ell }{a}text{ }………text{ (i)} ) where ρ (rho) is called resistivity of the material of conductor. If,        l = 1 m and…