Sulla resistenza elettrica dei metalli nei diversi dielettrici 



27 



TABELLA V. 



Petrolio A. — Durata dell' esperimento: 4 giorni 



Numero 



TEMPERATURA 



Differenza 



DEVIAZIONE 



d' ordine 





di temperatura 





TUBO DESTRO | TUBO SINISTRO 



LETTA CORRETTA 



171 



172 

 173 

 174 

 175 

 176 



198 

 199 

 200 



A 



25°,61 

 24, 15 



24, 66 



25. 00 



25, 11 

 25, 16 



27, 23 

 27, 29 



26, 94 



ARIA 



25°,60 

 24, 15 

 24, 65 



24, 98 



25, 10 

 25, 15 



27, 22 

 27 ] 28 



26, 90 



+ 0«,01 

 0, 00 

 0, 01 

 0, 02 

 0, 01 

 l), 01 



+ 0, 01 

 0, 01 

 0, 04 



l d , 78 

 1, 80 

 1, 85 

 1, 86 

 1, 85 



1, 90 



2, 04 



1, 93 



2, 00 



Media 



l d , 83 

 1. 80 

 1, 90 

 1, 96 

 1, 90 



1, 95 



2, 09 



1, 98 



2, 20 



1, 96 







PETROLIO 







177 B 



25, 39 



25, 40 



— 0,01 



2, 27 



2, 22 



178 



25, 42 



25, 45 



— 0,03 



2, 11) 



1, 95 



179 



25, 30 



25, 25 



+ 0,05 



1, 53 



1, 78 



180 



25, 28 



25, 23 



+ 0,05 



1, 63 



1, 88 



181 



24, 70 



24, 73 



— 0,03 



2, 42 



2, 27 



182 



24, 48 



24, 50 



— 0,02 



2, 37 



2, 27 



133 



25, 40 



25, 47 



— 0,07 



2, 88 



2, 53 



184 



25,81 



25, J 



+ 0,01 



2, 06 



2, 11 



185 



25, 90 



25, 90 



0, 00 



2, 07 



2, 07 



186 



25, 90 



25, 89 



+ 0. 01 



2, 00 



2, 05 



187 



25, 97 



25, 97 



0, 00 



2, 10 



2, 10 



188 



26, 05 



26, 05 



0, 00 



2, 00 



2, 00 



189 



25, 15 



25, 15 



o, oo 



2, 40 



2, 40 



190 



25, 33 



25, 37 



— 0,04 



2, 78 



2, 58 



191 



25, 45 



25, 50 



- 0.05 



2, 77 



2, 55 



192 



25,51 



25, 59 



— 0, 08 



2, 85 



2, 45 



193 



26,70 



26, 82 



— 0, 12 



3, 00 



2, 40 



195 



26, 85 



26,90 



— 0, 05 



2, 80 



2, 55 



196 



26, 90 



26, 90 



0, 00 



2, 80 



2, 80 



197 



26, 92 



27,00 



- 0,08 



2, 93 



2, 53 











Media 



2, 27 



TABELLA V. bis 



R d = ot \ 139 R s = Ù ", 144 



p = 3°>\ 57 



Deviaz. corretta 



Petrolio 2 d , 27 



Aria i, 96 



Differenza 



0, 31 



