162 Drs. Crehore and Squier on the Currents 



denoted by the numbers (1) to (6), and denote the resistances 

 and inductances of the branches by the letters 



and 



E l3 E 2j 1^3) ^4? R 5 , 1^6? f° r resistances, 

 L l5 L 2 , L 3 , L 4 , L 5 , L 6 , for inductances. 

 Let n denote the number of complete periods per second of 



Fig. 1. 



the E.M.F. of the generator, and let T be the time of one 

 period, then the angular velocity a> is equal to 2t-/T = 27t??. 



In fig. 2, let the line OA represent the impressed E.M.F., 

 E, at the terminals AB (fig. 1) of the Wheatstonc's bridge. 

 Since in the present discussion no current flows in the galva- 

 nometer circuit, then no change will take place in the other 

 currents which are flowing, if the galvanometer circuit is 



