Question

A cylindrical aluminium rod of length 2m is maintained at a temperature difference of 10${}^{\circ }$ Celsius. The radius of the rod is 1 cm. Find the heat current. (Thermal conductivity of aluminium = 200 W m${}^{-1}$ K${}^{-1}$.)

• A. 2.14 J/s
• B. 0.214 J/s
• C. 0.314 J/s
• D. 3.14 J/s

Answer 1

The correct option is C 0.314 J/s

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