MODULE V 

The following formula is used if the temperature of the conductor deviates substantially
from the assumed constant temperature of 20°C and if one has to determine the
resistance exactly under these particular conditions:
Examples for different temperature coefficients  
Material 
Temperature
coefficient [1/K]
(Lord Kelvin of Largs, English Physicist, 18241907) 
Copper  0,0039 
Aluminium  0,0038 
Iron  0,0045 
1.  
2. 