Electrical resistivity

The table below lists values of the resistivity, i.e. the reciprocal of the electrical conductivity, for various materials at temperatures of 20 degrees Celsius.

Note that:
1 ohm = 1 volt per ampere per square meter; that:
1 ampere = 1 coulomb per second; and that:
1 coulomb = 1 joule per voltage difference.

Material

Resistivity
(ohm*m-1)

Silver
1.59 x 10-8

Copper
1.7 x 10-8

Gold
2.4 x 10-8

Aluminum
2.8 x 10-8

Tungsten
5.6 x 10-8

Iron
10 x 10-8

Platinum
11 x 10-8

Lead
22 x 10-8

Nichrome
150 x 10-8

Carbon
3.5 x 105

Polystyrene
107 - 1011

Polyethylene
108 - 109

Glass
1010 - 1014

Hard Rubber
1013