A 50.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 11× 10 -8 ?m and the density is 7.86 g/cm 3 . The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 ?.
a) What length of wire is required?
b) What must be the diameter of the wire?