9 A long straight hollow conductor tube carrying a current

Last updated: 6/10/2023

9 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 B 3 B A C D 1 B B B 1 2 3 2 B B B