Question

Two metallic wires a and b of the same material are connected in parellel .wire a ha length l and radius r and wire b has a lenght 2l and radius 2r.compute the ratio of the total resistance of parallel xombination and the resistance of wire a

Answer 1

a=2pier
b=4pier
RinParallel=rho2l÷pie8r
ratio=2:4