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In the figure given below, curve A will be applicable when thermal conductivity of the material.

In the figure given below, curve A will be applicable when thermal conductivity of the material. Correct Answer Increases with increase in temperature

Explanation:

  • The variation in thermal conductivity of a material with temperature in the temperature range of interest is given by:
  • k(T) = k0 (1 + βT) where β is called the temperature coefficient of thermal conductivity.
  • The variation of temperature in a plane wall during steady one - dimensional heat conduction for the cases of constant and variable thermal conductivity is

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