﻿342 Prof. Trouton and Mr. Searle on Leakage Currents 



To get small values of H, the hygrometric state, the box was 

 first dried with phosphorus pentoxide until no current was 

 detected with the galvanometer adjusted as above, and then the 

 necessary water introduced. 



The results are shown in Table II. and are plotted in fig. 3. 

 Values below H = *6, given in Table III., are omitted on 









Table II. 







Table 



connecting Hygrometric State and Current. 



' Temp, of 



. Dew-point. 



Temp. 

 in Box. 



Hygro. 



state, 

 H. 



Deflexion. 



Mean. 











Eight. 



Left. 





6-7 



13-8 



•61 



218 



220 



219 



60 



126 





•64 



312 



318 



315 



62 



130 





•63 



297 



299 



298 



6-6 



123 





68 



110* 



110* 



1260 



7-9 



130 





•71 



177 



179 



2966 



9-1 



14-0 





72 



220 219 



3666 



8-6 



12-75 





75 



155 150 



4914 



8-9 



12-9 





77 



200 196 



6466 



10-1 



13-75 





78 



241 239 



7760 



9-5 



126 





81 



160 165 



13090 



100 



. 14-0 





80 



192 190 



11191 



9-6 



153 





69 



21 



23 



1745 



13-3 



18-8 





71 



130 



130 



3090 



137 



16-6 





83 



200 



200 



27502 



13-2 



150 





83 



193 192 



33302 



13-3 



160 





84 



205 205 



32318 



107 



132 





85 



249 | 233 



41001 



127 



152 





85 



280 280 



44140 



133 



15'7 



•86 



145 143 



48402 j 



* In this and the following readings the galvanometer was shunted : 

 the last column gives the corrected reading. 



• Table III. 



Table connecting Current with Hygrometric State for 

 Lower Values of H. 



Temp, of 

 Dew-point. 



Temp. 

 in Box. 



Hygro. 



state. 

 H. 



Deflexion. 



Mean. 



Eight. 



Left. 



2-5 

 33 

 1-5 

 31 



5-7 

 7'3 

 5-4 



14-5 

 15-4 

 12-8 

 130 

 14-8 

 14-4 

 161 



•44 



•44 



•46 



•51. 



•55 



•62 



•49 



7 



10 



34 



104 



147 



250 



69 



1 



38 

 104 

 148 

 249 



71 ■ • 



8 



10 



36 



104 



148 



250 



70 





