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Q. |
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°C. The temperature difference across the layer A is __________ °C. |
A. | 6 |
B. | 12 |
C. | 18 |
D. | 24 |
Answer» B. 12 |
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