Engineering, 25.02.2020 17:23 fzzyy

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.
(a) How does the drift speed vary along the wire as the area becomes smaller?
(b) How does the resistance per unit length vary along the wire as the area becomes smaller?

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A current-carrying ohmic metal wire has a cross-sectional area that gradually becomes smaller from o...