As part of a class project you are given 0.900 g of copper and asked to fabricate a wire by uniform cross-section. You use up 95% of the copper and make a wire with a resistance of 0.693?. The resistivity of copper is 1.72*10-8· m and its density is 8.92*103 kg/m3.
1) What length of wire do you end up with?
m
2) What is the diameter of the wire?
Mm