1. A current-carrying ohmic metal wire has a cross sectional area that gradually becomes smaller from one end of the wire to the other. The current has the same value for

each section of the wire, so charge does not accumulate at any one point. (i) How does the drift speed vary along the wire as the area becomes smaller? (a) It increases. (b) It decreases. (c) It remains constant. Explain (ii) How does the resistance per unit length vary along the wire as the area becomes smaller? Choose from the same possibilities as in part (i).