By what factor is the resistance of a copper wire changed when its temperature is increased from 30.0°C to 115°C? The temperature coefficient of resistivity for copper = 3.9 × 10^?3 (°C)?1

a. 1.45
b. 1.12
c. 1.33
d. 0.669
e. 4.32


c

Physics & Space Science

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