the Charging of a Condenser. 



405 



of these observations given in diagram (), shows that the 

 variations of the charge are increased when the capacity of 

 the condenser is increased. 



Although the preceding work is simply qualitative in its 

 character, one is justified, as a result of these observations, in 

 concluding that oscillations in the charge of a condenser occur 

 during the charging, and that the amplitude of these oscillations 

 diminishes rapidly as the time increases, and mag be increased 

 either by diminishing the resistance, or by increasing either the 

 electromotive force, the self-induction, or the capacity. 



Since completing the above experiments I have begun a 

 set of determinations, quantitative in their character, for the 

 purpose of deducing the relation between the charge of a 

 condenser and the time of charging. In order to show more 

 clearly the character of the oscillations that occur in the 

 charge, the results of a preliminary determination with a 

 mica condenser are given in Table XL, and the corresponding 

 curve is shown in diagram 7. 



Table XI. (See also diagram 7.) 

 Mica Condenser (normal charge = 2 050 microcoulombs). 



Time of Charging. 



Hundred-thousandths 



of a second. 



Charge of Condenser. 

 Microcoulombs. 



1-26 



3-78 



2-52 



071 



3-78 



312 



5-04 



1-33 



6-30 



275 



7-56 



1-65 



8-82 



241 



101 



1-72 



11-3 



2-26 



12-6 



1-83 



13-9 



2-15 



151 



1-89 



164 



212 



17-6 



1-93 



18-9 



209 



20-2 



1-96 



21-4 



2-06 



227 



2-00 



271 



2-02 



36-1 



2-02 



Phil Mag. S. 5. Vol. 34. No. 210. Nov. 1892. 2 F 



