Magnets Interacting On Pivots

Purpose

To show the interaction between two bar magnets which are free to rotate.◙
 

Equipment

Two bar magnets on pivots.◙

 

Images

Description

Start the larger bar magnet rotating to watch the reaction of the lighter magnet.◙
 

References

Trevor Mitchell and P. B. Siegel, A simple setup to observe attractors in phase space, AJP 61, 855-856 (1993).