A metal wire has a resistance of 25 omega at a temp of 25degrees C. If the same

Question

A metal wire has a resistance of 25 omega at a temp of 25degrees C. If the same wire was heated to 85 degrees C, theresistance increases to 25.75 omega. What is the temperaturecoefficient of resistivity of this metal? Thanks    Not in text but similar A metal wire has a resistance of 25 omega at a temp of 25degrees C. If the same wire was heated to 85 degrees C, theresistance increases to 25.75 omega. What is the temperaturecoefficient of resistivity of this metal? Thanks    Not in text but similar Thanks    Not in text but similar

Explanation / Answer

      =   (Rt2   -   Rt1)/ Rt1 * (t2   -   t1)   =   (25.75- 25.00) / 25.00 * ( 85 - 25)       =   5.00 *10-4   / 0C

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