272 



Drs. Bedell and Crehore on the 



Figs. 1 and 2 are triangles of E.M.F.s for simple circuits 

 with resistance and self-induction, and resistance and capacity 



Fig. 1. 



Fig. 2. 



respectively. Rotation is in all cases counter-clockwise, and 

 the impressed E.M.F. is considered as the sum of thatneces- 

 sary to overcome the resistance and the self-induction or 



Fig. 3. 



capacity. Fig. 3 is the E.M.F. triangle for a single circuit 

 with resistance, self-induction, and capacity, the current being 



