Resistivity, Temperature Calculator
Resistivity, Temperature Calculator:
Resistivity increase or decrease significantly as temperature changes.
The relationship between resistivity and temperature is:
Δρ = α * ΔT * ρ0
Where:
Δρ : Change of the resistivity
α : Resistivity, temperature coefficient
ΔT : Change of temperature
ρ0 : Original resistivity
For example, at 20 °C (293 K), the resistivity of Copper at 20 °C is 1.68 * 10-8
, it's temperature coefficient is 0.0039 K-1, its resistivity at 30 °C is
1.75E-8.
Metal Resistivity Table
Metal
Resistivity (Ω . m) at 20 °C
Temperature coefficient [K-1]
Silver
1.59 × 10-8
0.0038
Copper
1.68 × 10-8
0.0039
Aluminium
2.82 × 10-8
0.0039
Tungsten
5.60 × 10-8
0.0045
Platinum
1.06 × 10-7
0.00392
Manganin
4.82 × 10-7
0.000002
Constantan
4.9 × 10-7
0.000008
Mercury
9.8 × 10-7
0.0009
Nichrome
1.10 × 10-6
0.0004
Carbon
3.5 × 10-5
-0.0005
Germanium
4.6 × 10-1
-0.048
Silicon
6.40 × 102
-0.075
