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

The resistance of a wire is directly proportional to the specific
resistance of the material.

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
“K” = Specific Resistance
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