A long straight hollow conductor tube carrying a current has

Last updated: 6/11/2023

A long straight hollow conductor tube carrying a current has two sections A and C of unequal cross section joined by a conical section B 1 2 and 3 are the points on a line parallel to the axis of the conductor The magnetic fields at 1 2 and 3 have magnitude B B and B3 A B 1 B B B3 3 B B B3 2 3 2 B B B3 4 B B B3