1897.] KOUSTOX, KEXXELLY — THE PATH OF A CURREXT. 151 



being distributed in straight lines; /. e., in sections of planes, per- 

 pendicular to the wire and to the ground. The wire being nega- 

 tively charged, by convention the flux streams converge towards it. 



8 S 



ifltHntHittnttittfmtrtttttmT^wnittlitr 



Fig. 2. — Electric Flux Permeating Insulator of Cable. 



In Fig. 2, CC, is an insulated conductor, usually of copper, 

 separated from the conducting sheath SSSS, which may be of lead 

 or other metal, by the cylindrical insulating jacket IIII. Here the 

 flux is represented as emerging from the wire which is, therefore, re- 

 garded as positively charged. The density of the flux is greatest 

 in the vicinity of the interior conductor, and diminishes uniformly 

 as we proceed towards the sheath. This is represented diagrammatic- 

 ally by the length of the flux arrows. On the left-hand side the 

 flux is seen to be distributed in planes perpendicular to the length 

 of the cable. 



■ I 



AL 



l!!n!liillin|ll!!i;!,. 

 ir.rT'^i.-'.'Mi' "^ 



,[UtirtrfninnTninTTnTif 



3B 



CL 



ID 



Fig. 3. — Electric Flux Permeating Insulator between Two Parallel Wires. 



