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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 [Wrong Answer] |
B. | 12 [Correct Answer] |
C. | 18 [Wrong Answer] |
D. | 24 [Wrong Answer] |