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Determine at what temperature aluminum will have the same resistivity as tungsten does at 24 ∘C
ρ = ρo [1 + α ΔT]
So ρ_tungsten = (1 + 0.0045*4)*5.6*10^8 = 5.7*10^-8
5.7*10^-8 = (1+ 0.00429*ΔT)*2.65*10^-8
=> ΔT = (5.7/(2.65) - 1)/0.00429 = 268.28
=> T = 20+ 268.28 = 288.28 C Answer
Determine at what temperature aluminum will have the same resistivity as tungsten does at 24 ∘C
determine at what temperature aluminum will have the same resistivity as tungsten does at 24 degrees Celsius
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