A donut shaped permanent magnet magnetization parallel to

Last updated: 6/5/2023

A donut shaped permanent magnet magnetization parallel to the axis can slide frictionlessly on a vertical rod Treat the magnets as dipoles with mass m and dipole moment M When we put two back to back magnets on the rod the upper one will float At what height z does it float 1 3 2 0M 3 mag 71 4 3 0 M 71 4 2 m g Z 2 4 6 M mag HoM 6 mag 71 4 1 4