L89.1.J Power given by any Electric Current to any Circuit. 429 

 100 v " ' "* 'J.\'_ l *~ V * +V ) (5). 



The following are samples of Jthe results obtained with a hand- 

 ilated lamp, there being no electromagnet at all in series with 



Fio. 2. 



ic arc (fig. 2). The carbons were not cored and the arc was hissing. 

 The frequency was maintained at 200 periods per second. 



I 



Table I. 



For the purpose of obtaining an idea of 0, the angle of phase 

 lifference produced by the hissing arc, between the current and the 



