A 81.3 g mass of iron is formed into a right circular cylinder, shaped so that its diameter equals its height. [You will need the density of iron : 7.86×103 kg/m3, and its resistivity : 1.00×10-7 ?m]
A). Calculate the resistance between the top and bottom faces of the cylinder.
B.) Calculate the resistance between opposite faces if the same mass of iron is formed into a cube.