Verify the value of alpha20 for copper in table by, Electrical Engineering

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Verify the value of alpha20 for copper in table by

a. Verify the value of α₂₀ for copper in Table by substituting the inferred absolute temperature into Eq. (1).

b. Using Eq. (2) find the temperature at which the resistance of a copper conductor will increase to 1 from a level of 0.8 Ω at 20°C.

Temperature coefficient of resistance for various conductors at 20°C
Material	Temperature Coefficient (a₂₀)
Silver	0.0038
Copper	0.00393
Gold	0.0034
Aluminum	0.00391
Tungsten	0.005
Nickel	0.006
Iron	0.0055
Constantan	0.000008
Nichrome	0.00044

643_Equation 1.jpg

1013_Equation 2.jpg

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