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BELL SYSTEM TECHNICAL JOURNAL 



(7.2); with K, K , AK (there) corresponding to z, z , Az (here) 

 Thus, by applying (7.1) to (10) and (11), 



n = ib/(l-ib)=ia/(F-ia). 

 Or, approximately, when b and a are small, 



H = ib=ia/F; 

 and thence, approximately, by (7.2), 



Az/z =ib/2=ia/2F. 



This analysis serves to account, approximately, for the nature of the 

 effects of small leakance, as depicted in Figs. 1 and 2 by the curves for 

 small b and small a. To account for the effects of large leakance, as 

 depicted by the curves for large b and large a, recourse to the exact 

 formula for Az/z would be necessary; but the curves for large leakance 

 possess hardly more than academic interest, as will be realized from 

 the remarks already made under the heading The General Effect of 

 Leakance. 



