Plastic insulation surrounds a wire having diameter $d$ and length $I$ as shown above. A decrease in

Question

Plastic insulation surrounds a wire having diameter $d$ and length $I$ as shown above. A decrease in the resistance of the wire would be produced by an increase in the\

Professor PC Thomas Classes · Answer

(b) : The resistance of the wire of length $I$ having diameter $d$ and resistivity $\rho$ can be given by the formula,