Specific Resistance (K)

The Specific Resistance (K) of a material is the resistance offered by a wire of the material which is one foot long with a diameter of one MIL。

Material  "K" Material "K"
Brass 43.0 Aluminum 17.0
Constantan 295 Monel 253
Copper 10.8 Nichrome 600
German Silver (18%) 200 Nickel 947
Gold 14.7 Tantalum 93.3
Iron (Pure) 60.0 Tin 69.0
Magnesium 276 Tungsten 34.0
Manganin 265 Silver 9.7

The resistance of a wire is directly proportional to the specific resistance of the material.
江西快3 "K" = Specific Resistance