Comparing Capacities. 243 



Consequently 



I 



AB 



and 



Hen 



qi = x^ke K, a+b ? 



j, CD 



q 2 = ^oKgDe K2 c+n. 



ce 



dq 1 __. . A + B k.^5. 



A + B K , 



AB 



and 

 Therefore 



and 

 Therefore 



= -x -^-e x a+b ; 





A + B Kl *= C + D K ™ 

 ___g ia+b = — _ e 2 c+d, 



A+B_ C+D 

 B ~ D ' 



^1 a , P —^TT 



A + B~ J C + D 

 and, since AC = BD, 



K X B = K 2 C, 



K t _C 

 K 2 ~B' 



If there is self-induction in the four conductors, let L x be 

 the coefficient of self-induction of A, L 2 of D, L 3 of B, and 

 L 4 ofC. Then 



(A + B + G) y + (A + B)* + I*^ + L 3 <^) -Af = 0. 



_ G , + (C + D). + L 2 |+L4;-Df = 0. 

 Solving for y, we have 



^0 + D){a£-I^-L.^} 



- ( A + B){ D f-L 2 J-L 4 J}. 

 R2 



