

eae "i her se it i 
576, Mr. S. C. La 
=) 
Effect , 
ws on the Thomson 









Taste X.—Joule Effect. 
C=83 amperes. x= 215 ems. &, = 2:15 enis, 
H. Vox LOPE Yo 10", Oy. 
12°53 —274 
1°58 +-2:07 cea 
2°55 —2-07 
3°54 SETS 4:31 
4:54 —3°04 
5°53 +174 4°52 
6°58 — 2°52 
81 +1:91 4°61 
8°59 — 2-88 
Mean value for 0, ... 4-48, : 
Results obtained for this alloy are :— 
do 
bs We oO. 
25°6 "035  — 3690 ergs per C.G.8. unit current per 1° C. 
26°2 “D4 3550, 3 ” 
26'8 ‘D6 3760, . » 
38° | "56 3850 ,, y ” 
388 ~-57 Sy) a & » 
39°5 605 3900 _,, ” ” 
535 "705 3950. |, is Ff 
54:1 fl 3990 _,, * % 
67-7 "79D O60! yi ” 
68'1 nan ASO G,, %» 
It will be seen that the values of o in this case are less” 
than half those obtained for the previous alloy. 
Fig. 5. 
ae 
a ee 
4000 ees T 
3800 Se 
3600 by ae 
ae cl ae 
poet ey | | 
Sai 
30 40 50 60 70 NG 











Also from the values of « and 9 plotted in fig. 5, it appears 
that, for the range of temperatures employed, the Thomson 
effect in this alloy is proportional to the absolute temperature. 

