Question

A constant temperature-difference of 100◦C is maintainedacross a slab of thickness 10 cm. The thermal conductivityof the material of the slab increases linearly with distance,being 2 c.g.s unit at the cold face and 4 at the hot surface.Show that the rate of flow of heat per unit area of the slab is20/ln2 ​

Answer 1

Explanation:

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