Let's take a current-carrying cable with a gradually

Last updated: 7/10/2022

Let's take a current-carrying cable with a gradually narrowing cross-sectional area along the length of the wire so the wire turns into the shape of a very long, truncated cone. How does the drift speed (va) vary along the length of the wire? Ova first increases and then goes down after it reaches to a critical value. Ova remains the same regardless the cross section of the cable. O It speeds up with the length O It slows down with the length of the cable