[Solved] A Nichrome Wire and an Aluminum Wire, Each with the Same

Question 19
Multiple Choice

A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change in resistance when heated separately. (ρAl = 2.82 × 10−8 Ω ⋅ m; αAl = 3.9 × 10−3 / °C; ρnichrome = 1.50 × 10−6 Ω ⋅ m; αnichrome = 0.40 × 10−3 / °C.) The ratio of the temperature change of the nichrome wire to the temperature change of the aluminum wire is

A)0.019.
B)0.10.
C)0.18.
D)9.8.
E)53.

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