A wall has two layers of materials A and B; each made of a different – McqOptions

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1.	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 materialA is twice that of B. Under the equilibrium, the temperature difference across the wall is 36°C. The temperature difference across the layer A is __________ °C.
A.	6
B.	12
C.	18
D.	24
Answer» C. 18

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