Question: A wall has two layers of materials A and B; each made of a different material. Both the layers have the same thickness. The thermal

A wall has two layers of materials A and B; each made of a different material. Both the layers have the same thickness. The thermal conductivity of material A is twice that of B

.

Under the equilibrium, the temperature difference across the wall is

36

.

The temperature difference across the layer A is

_________

.

6

12

18

24

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