AP Physics 2 Quiz
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THERMODYNAMICS
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Two rods, U and V, are made of different materials but have the same length and area. Their ends are held at 80∘C80^\circ\text{C} and 20∘C20^\circ\text{C}. Rod U has thermal conductivity kU=10 W/(m K)k_U=10\,\text{W/(m\,K)} and rod V has kV=40 W/(m K)k_V=40\,\text{W/(m\,K)}. (Conductivity sets heat-flow rate; specific heat affects temperature change when energy is stored.) Which rod has the larger steady heat current?
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