982 
- 
TABLE RX 
Magnetic change in the resistance of mercury. 
| kle ld en ae 
| T==2055K, A 1425 K. 
| 
| ï Tien FEST oe me 
H | Lw | | Aw 
| in gauss by as a Pra apn 
9760 wep Ps + 5.5 
10270 | 1.5. || 10270 | + 6:5 
oz 416 | 
| 
The measurements therefore show an increase of the resistance 
in the magnetic field. At 
Aw 
H— 10000 and 7=—20°3K - = 115 x 10-3 
Ww 
Aw 
T = 14°.5 —16 10-3 
w 
were obtained as mean values. 
At these temperatures the temperature coefficient of the resistance 
is very great, and this lessens the accuracy of the above measurements, 
especially at 7’= 14°.5 K. The large increase occasioned by lowering 
the temperature from 20° to 14° K. is very striking. 
§ 18. The Harrefject for, and the magnetic change in the resistance 
of, nickel. The material in the form of a plate of 0.053 mm. thick- 
T ANB E XX. 
Harreffect for nickel Nij: 
gE Kole tote | T=20°3K. I Pea 
| | 
BES EEN RN | 
_raoll # RH “Rat H |RH| —Rxi04| H |RH | —Rx104| - 
De 
Ti 
HIRE, 
| loves] | I] | | 
3010/18.8 62.4  29802.93 9.83 || 29701.48 4.98 | 49402.50, 5.06 
ee Tr 
517031.2 60.3  49504.58 9.25 5640 2.86 5.08  82504.25 5.15 
126039.3) 54.1 7290 6.31 8.65 72603. 53 4.86 |102105.19 5.05 
‚9065 43.1 
ended Nk ak teak | | 
10270 44.9! 43.7 '104008.29 7.98 | eae | 81, 4.68 | 
| seul 
41.6 || 9110 7.62 8.36 9250406 08 4.95 || 
