Rate of reaction

Analysis: With scientific knowledge the graph has turned out like it should have turned out, in that the resistance will increase as the length of a wire increases.
This is because of the idea, discussed in the prediction that if you double length, you double the number of atoms in it. As the charges move through the conductor they collide with other atoms. They transfer some of their kinetic energy. This transfer on collision is what causes resistance. So doubling length...