A composite block is made of slabs A, B, C, D and E of different thermal conductivities…
Physics · JEE Advanced · NTA Exams — Properties of Solids and Liquids
A composite block is made of slabs A, B, C, D and E of different thermal conductivities (given in terms of a constant K) and sizes (given in terms of length, L) as shown in the figure. All slabs are of same width. Heat Q flows only from left to right through the blocks. Then in steady state
- heat flow through A and E slabs are same.
- heat flow through slab E is maximum.
- temperature difference across slab E is smallest.
- heat flow through C = heat flow through B + heat flow through D.
Answer
(D) heat flow through C = heat flow through B + heat flow through D .
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