Bower — GeometrfeeU Properties 0/ Lines of Force, ^->i 



1. The system baring electric charges <>f unlike - 



... ,, ., . ( right banded / 



DOndl to the Case in which Ur'wMl > 



' [aft banded > 



rotation and /' I) bat a motion to tbes * £. IPig. 1. 



' left ) 



2. The system baring electric charges of like 



i .v i i ^.a> i $ kft banded / 



corresponds to the case in which '>/' oas < c 



' gnf banded > 



rotation ami P D bas a motion to the* *• ' , . Fig. 2. 



' left S 



Fie. s. 



J rig- ( ; shows the Knes of force proceeding from a sys- 

 tem consisting of an electrified plane yl B and an eled 



point O. 



