Interacting Cylindrical Magnets
This Demonstration shows how cylindrical magnets interact and calculates their attractive force.[more]
The magnetization is given by (remanent field ).
Magnet parameters: , lengths; , outer radii; , inner radii.[less]
 N. Derby and S. Olbert, "Cylindrical Magnets and Ideal Solenoids," American Journal of Physics, 78(3), 2010 pp. 229–235. doi:10.1119/1.3256157.
 Q. L. Peng, S. M. McMurry and J. M. D. Coey, "Axial Magnetic Field Produced by Axially and Radially Magnetized Permanent Rings," Journal of Magnetism and Magnetic Materials, 268(1–2), 2004 pp. 165–169. doi:10.1016/S0304-8853(03)00494-3.