. A silver wire has a resistance of 4.2 Ω at 27°C and resistance 5.4Ω at 100°C. Determine the temperature coefficient of resistance.
1 point
a) 20 /°C
b) 3.91× 10-3 /°C
c) 45×10-3 /°C
d) 5.4 /°C
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