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Physics Current Electricity Level: High School

A metal wire has a resistance of 25.00 ohm . Under room temperature conditions of 25 degreeC when the wire is heated to 85 degreeC the resistance increases by 0.75 ohm . What is the temperature coefficient of resistivity of this metal ?

a. 5.0 x 10-4(degreeC)-1

b. 1.3 x 10-3(degreeC)-1

c. 1.5 x 10-3(degreeC)-1

d. 2.5 x 10-3(degreeC)-1