SOME ASPECTS OF NOISE INDUCTION 497 



tion in the inductive Influence because the induction was primarily a 

 function of the residuals on the line. Similarly when the metallic 

 and the grounded circuit are metallically connected, it is observed that 

 the transposing of the metallic circuit produces a relatively small 

 reduction in noise. However, if the repeating coil is inserted between 

 the metallic and grounded circuits it is observed that transposing the 

 metallic portion materially reduces the noise on the overall connection, 

 since the transpositions reduce direct induction in the metallic circuit 

 and the noise to ground is not given an opportunity to react on the 

 unbalances. 



