REACTIVE CIRCUITS IN PARALLEL. 65 



and ( ...... (20) 



B 



~ 



Also, the equivalent impedance / of the multiple circuit is 

 given by 



where A and ^ are defined by (17). 



A particular case worthy of attention is that in which the 

 arrangement consists of two circuits only, one of which contains a 

 resistance r\ and a self-induction L, while the other contains a 

 resistance r* and a capacity G. 

 In this case 



s l =pL 

 1 



so that 



A = 72 



Also, if i\ and i% are the currents in the two branches respec 

 tively 



and the main current i is given by 



