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+//Finding temperature coefficient
+//Example 2.6(pg. 23)
+clc
+clear
+R80=50,R28=40// resistance in ohms
+t=28,T=80// temp in degrees
+k28=[(R80/R28)-1]/(T-t)//since RT=Rt{1+k*(T-t)}
+printf('The value of Temperature coefficient at 28 degree C is %3.4f ohms per degree C \n',k28)
+k0=k28/(1-k28*t)// since k28=k0/(1+k0*t)
+printf('The value of Temperature coefficient at 0 degree C is %3.4f ohms per degree C',k0)