| Resistivities and Temperature Coefficients | ||||
| Material Resistivity in ohm-meter Temperature coefficient at 20ºC (´ 10-8) 20ºC (´ 10-4) | ||||
| Aluminum, commercial | 2.8 | 40.3 | | |
| Brass | 6 – 8 | 20 | | |
| Carbon | 3000 – 7000 | -5 | | |
| Constantan or Eureka | 49 | +0.1 | to | -0.4 |
| Copper (annealed) | 1.72 | 39.3 | | |
| German Silver | 20.2 | 2.7 | | |
| (84% Cu; 12% Ni; 4% Zn) | | | | |
| Gold | 2.44 | 36.5 | | |
| Iron | 9.8 | 65 | | |
| Manganin | 44 – 48 | 0.15 | | |
| (84% Cu ; 12% Mn ; 4% Ni) | | | | |
| Mercury | 95.8 | 8.9 | | |
| Nichrome | 108.5 | 1.5 | | |
| (60% Cu ; 25% Fe ; 15% Cr) | | | | |
| Nickel | 7.8 | 54 | | |
| Platinum | 9 – 15.5 | 36.7 | | |
| Silver | 1.64 | 38 | | |
| Tungsten | 5.5 | 47 | | |
| Amber | 5 ´ 1014 | | | |
| Bakelite | 1010 | | | |
| Glass | 1010 – 1012 | | | |
| Mica | 1015 | | | |
| Rubber | 1016 | | | |
| Shellac | 1014 | | | |
| Sulphur | 1015 | | | |
Resistivities and Temperature Coefficients
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