24 ON MAGNETISM. 



SECTION III. 



ALGEBRAICAL INVESTIGATIONS OF THE ACTION OP 



ONE MAGNET UPON ANOTHER ; THE MAGNETS BEING 

 IN THE SAME PLANE, AND THE FORCE OF ATTRAC- 

 TION OR REPULSION VARYING AS A POWER OF THE 

 DISTANCE. 



14. The disturbing magnet presents the center of one 

 side at right angles to the disturbed magnet (a position 

 which we shall hereafter term "broadside-on"), and the 

 disturbed magnet presents one end to the center of the 

 disturbing magnet (a position which we shall call "end- 

 on") ; the magnetical energies are supposed to be collected 

 in the poles, and the attractive or repulsive force to vary 

 inversely as the mth power of the distance : to find the 

 angular momentum impressed on the disturbed magnet 

 Attractions will be represented in the diagrams by 

 continuous lines, repulsions by interrupted lines. 



In Figure 9, suppose that we require the angular 



