Mr. R. H. M. Bosanquet on Electromagnets. 305 



force, whose coefficient was determined from the observed 

 values. 



In the figure which follows, the crosses show the observed 

 values ; the dotted line shows the best representation by means 

 of a maximum value of the induction 2$^, fitted to the highest 

 value ; and the dashed line shows the representation by means 

 of the constant B and the term proportional to the magne- 

 tizing force. 





33 



lo,0U0 



20,000 



The two following Tables give the complete numerical 

 results of the representation of the numbers for plain bars ; 

 first, according to the calculation with a fixed maximum induc- 

 tion, and, secondly, where the maximum induction is made to 

 contain a term proportional to the magnetizing force. The 

 extraordinary gain in the representation of the saturation 

 region in the latter case will be noticed. 



9S . 



— is the magnetizing force. Its coefficient 

 table is 185 nearly. 



in the second 



