518 



PROFESSOR KNOTT ON SOME RELATIONS BETWEEN 



19. Other Results for Nickel. — Table VI. is a condensation of the results for three 

 other nickel wires. Only the areas and ranges are tabulated along with the currents 

 and total twists — the complete cycles being omitted. The first column gives the 

 diameter of the nickel wire ; the others sufficiently explain themselves by their headings. 

 In all three cases, the length of wire was the same as in the first case (see Table V.), 

 namely, 76 cm. 



Table VI. 



Diameter of Wire 

 in mm. 



Current in Amperes. 



Half-Twist in 

 Degrees. 



Lag Area 

 ■jr. 



Range of Intensity. 



1-3 



0-3 



45° 



7-9 



123 





0-64 



)> 



15-1 



234 





1*26 



>j 



20-1 



325 





2-98 



» 



17-7 



406 





4-05 



>> 



14-8 



420 





394 



)> 



1-1* 



454* 





0-27 



90 



11-0 



291 





0-62 



>> 



14-8 



390-2 





1-02 



>> 



6-4 



444 





1-22 



)> 



+ 1-5 



4615 





1-54 



)j 



- 4-4 



480-5 





2-04 



>> 



-15-1 



501 





3-60 



j) 



-35-3 



529 





3-54 



J? 



-89-6* 



526* 





3-47 



>> 



-32-8 



527 





1-84 



)> 



-15-0 



502 





0-96 



)> 



+ 3-0 



464 





0-28 



)> 



+ 17-3 



364 





0-27 



>) 



-45-2* 



391* 





0-30 



100 



+ 7-2 



365 





>) 



>> 



-64-1* 



393* 





0-53 



)> 



- 2-1 



395 





>) 



)) 



- 90-7* 



432* 





0-74 



J) 



- 7-8 



428 





1-22 



)) 



-21-5 



475 





2-06 



)) 



-36-9 



505 





3-46 



)) 



-56-8 



525 



0-87 



0-59 



45 



16-7 



333 





>> 



») 



0-8* 



386* 





0-96 



>) 



20-4 



337 





1-37 



)> 



19-2 



358 





2-32 



>> 



+ 15-3 



384 





223 



>» 



- 6-5* 



416* 





0-45 



90 



+ 25-1 



445 





)> 



>> 



-52-3* 



439* 





0-80 



)> 



+ 29-6 



444 





1-15 



!> 



25-1 



464 





1-55 



!) 



20-5 



471 





1-98 



)> 



+ 14-8 



482 





>) 



J) 



- 75-8* 



482* 





3-55 



>) 



- 1-5 



500 





3-48 



>> 



- 80-4* 



489* 





0-51 



100 



+ 25-1 



501 





)> 



>> 



-56-6* 



484* 





0-90 



)) 



+ 12-2 



502 





1-25 



!) 



+ 8-2 



515 



