58 



Prof. G.Wiedemann's Magnetic Researches, 



t. 



1. 



n. 



t. 



1. 



n. 



o 













... 



116 



161-8 



180 ... 



148 



166-5 



30 ... 



155 



169 



150 ... 



1625 



178 



60 ... 



147 



184-4 



120 ... 



189-5 



201 



90 ... 



1403 



197 



90 ... 



180-5 



191 



120 ... 



140-7 



189 



60 ... 



170 



177 



150 ... 



140-2 



174 



30 ... 



163-2 



167-5 



180 ... 



140-5 



166 



... 



159 



162-3 



210 ... 



140-6 











C. A similar iron wire magnetized by a very strong current. 



t. 



1. 



n. 



t 



1. 



n. 



o 







o 







... 



385-5 



382-5 



180 ... 



380-5 



3814 



30 ... 



387-5 



386 



150 ... 



384-4 



385 



60 ... 



384-7 



388-5 



120 ... 



385-8 



387-5 



90 ... 



381 



388 



90 ... 



386 



387-8 



120 ... 



378-5 



386 



60 ... 



385 



3854 



150 ... 



377 



383 



30 ... 



884 



384 



180 ... 



376-7 



380-4 



... 



383 



3824 



210 ... 



376-7 



378 









D. An iron wire of 3 millim. diameter, magnetized in the 

 same wav. 



t . 



n . 



. 0° 

 . 272 



30° 

 293 



58° 

 307 



60° 

 308 



90° 

 311 



120° 

 298 



150° 



285 



180° 

 276 



210 c 

 267 



t . 

 0. 



. 180° 

 . 276 



150° 



292 



133° 

 299 



120° 

 303 



90° 

 302-5 



60° 

 296-1 



30° 



289 



0° 



282 





The degrees 58 and 133 correspond to the positions of me- 

 chanical equilibrium, after removing the torsional forces, with 

 increasing and decreasing torsion respectively. 



2. Soft-iron wire 2 millim. thick, permanently magnetized 

 longitudidally by a current led round it. 



on p . 



in p . 



t. 



1. 



2. 



n. 



t 



1. 



2. 



n. 



o 







30 



60 



90 



120 



150 



180 



210 



298 



213 



172 



153-6 



152-2 



147-7 



145-8 



145 



68-2 



70 



73 



89*2 



93 



88 



84 



81-3 



42 



42-6 



431 



44-4 



51-3 



50-3 



48-5 



48-2 



o 



180 



150 



120 



90 



60 



30 







147 

 145 



125*6 

 94 



78 

 72 

 68-2 



82-6 



84 



88-5 



70 



625 



58 



55-6 



48 



48-1 



45 



47 



47 



42-5 



42 







