Magnetic Hysteresis with Frequency. 1 1 1 



would by its variation generate in any circuit looped on it 

 the same virtual E.M. If. as would be produced in the same 

 circuit by the actual induction B ; or otherwise stated. 



S8=y2R.M.S.(^). 



When we write the equation for E in the form 



E = <? 



SB» 



e will be a constant for a particular ring and we find, using 

 the values for x and p given in § 3, that, 



for Ring I. e=2'95 x 10-7, 

 and for Ring II. e = 2S13 x 10" 7 . 

 In the experiment with King I. that is being discussed, 

 ^- = 17-2x100 

 T = -0307 

 hence E = 165. 



10. In every case with either ring it was found that the 



Fi<r. 3. 



|00G-^ 



1000- 



10000 

 Kinetic Hysteresis v. Max. Induction. 



sum of the- statical hysteresis (U) and the theoretical eddy- 

 current loss (E) was less than the total iron loss (I) as 



