A coil of aluminium wire has a resistance of 50Ω when its temperature is 0◦C. Determine its resistance at 100◦C if the temperature coefficient of resistance of aluminium at 0◦C is 0.0038/◦C.
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Answer:
69 Ω
Explanation:
R=Rref [1+α(T-Tref)]
R = 50Ω [1 + 0.0038(100-0)]
R = 69 Ω
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