131 



width of pole. 1. Gave a curve of 

 primary current in a circuit with self- 

 induction which was also'harmonic, and 

 a curve of secondary electromotive force 

 also harmonic. 2. Gave a curve of pri- 

 mary current similar in form to the 



Figs. 29 



Primary 



curve of electromotive force, but with all 

 the corners rounded and the rises and 

 falls less abrupt ; but the curve of 

 secondary electromotive force was differ- 

 ent, and showed rapid rises and falls 

 and intervals of no electromotive force. 



