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A 45 cm wire is used to boil water.The power of the wire is 1.25 kW.Its radius is 2 mm.The thermal conductivity of the wire material is 20 W/(m ∙ K).What is the difference between the temperature at the center of the wire and the temperature on the surface of the wire?

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A 45 cm wire is used to boil water.The power of the wire is 1.25 kW.Its radius is 2 mm.The thermal conductivity of the wire material is 20 W/(m ∙ K).What is the difference between the temperature at the center of the wire and the temperature on the surface of the wire?





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