The two ends of a uniform rod of thermal conductivity k are maintained at different but constant temperatures. The temperature gradient at any point on the rod is d l d θ (equal to the difference in

Question

The two ends of a uniform rod of thermal conductivity k are maintained at different but constant temperatures. The temperature gradient at any point on the rod is d l d θ ​ (equal to the difference in temperature per unit length). The heat flow per unit time per unit cross-section of the rod is I . Which of the following statements is/are correct?

TestHub · Accepted Answer

For a uniform rod in steady state, the heat current I = k d l d θ ​ is the same at all points, so the gradient is constant (A) and (C) holds. (B) is false. A and C.

Physics - Heat & Thermo Question with Solution | TestHub

Options:(select one or more)

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