1.

What is the temperature co-efficient of resistance? 

Answer»

Temperature co-efficient of the resistance of any substance is, change in its original resistance due to the change in temperature. The temperature co-efficient of resistance of material is the ratio of increase in resistance of 1°C rise in temperature to the original resistance of the material (strictly at 0°C). Formula for the resistance measurement is, 

Rt = R0 (1+αt) 

Where Rt  Resistance at t°C. 

R0  Resistance at 0°C. 

α  Temperature co-efficient. 

 Temperature rise. 



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