387 



TABLE 386.— RESISTIVITY OF METALS AND SOME ALLOYS (concluded) 



Resistance temperature coefficient for a number of metals and alloys of high purity. 



Metal (i? 100 -i? )/100i? 



Ni 00667 



Zn 00419 



Cd 00423 



Pt 003925 



Rh 00436 



TABLE 387.— SOME ELEMENTS ARRANGED IN ORDER OF INCREASING 

 RESISTIVITY (ohm-cmx10- e , 20°C) 



TABLE 388.— THERMAL ELECTROMOTIVE FORCE OF PLATINUM-RHODIUM 

 ALLOYS VERSUS PLATINUM 



emf (mv) 



Percent rhodium 



TABLE 389.— EFFECT OF TENSION ON THE RESISTANCE OF METALS 



SMITHSONIAN PHYSICAL TABLES 



