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As the temperature of a metal rod varies, so does the resistance and the dimensions of the rod. If a copper rod has a resistance of 3.64 Ω at 20.0∘C, determine the resistance of the rod (in Ω ) at 120∘C by accounting for the changes in both the resistivity and the dimensions of the rod. The coefficient of linear expansion for copper is 1.67×10−5 (∘C)−1 and the temperature coefficient of resistivity is 4.04×10−3(∘C)−1. Ω

As the temperature of a metal rod varies, so does the resistance and the dimensions of the rod. If a copper rod has a resistance of 3.64 Ω at 20.0∘C, determine the resistance of the rod (in Ω ) at 120∘C by accounting for the changes in both the resistivity and the dimensions of the rod. The coefficient of linear expansion for copper is 1.67×10−5 (∘C)−1 and the temperature coefficient of resistivity is 4.04×10−3(∘C)−1. Ω

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As the temperature of a metal rod varies, so does the resistance and the dimensions of the rod. If a copper rod has a resistance of 3.64 Ω at 20.0 ∘ C , determine the resistance of the rod (in Ω ) at 120 ∘ C by accounting for the changes in both the resistivity and the dimensions of the rod. The coefficient of linear expansion for copper is 1.67 × 10 − 5 ( ∘ C ) − 1 and the temperature coefficient of resistivity is 4.04 × 10 − 3 ( ∘ C ) − 1 . Ω

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