
The V-I graphs for two wires A and B are shown in the figure above. This graph is based on Ohm's law. The slope of the V-I graph gives resistance to the conductor.
a. If wires A and B are of the same materials having equal length, then which wire is thicker?
b. If wires A and B are of the same materials and have the same diameter, then which wire is shorter?
c. If both wires are of the same length and the same diameter, then which wire has maximum resistivity?