A wall has two layers A and B each made of the different materials. The thickness of both the layers is the same. The thermal conductivity of A, KA = 3 KB (thermal conductivity of B). The temperature across the wall is 20°C in thermal equilibrium 1. the temperature difference across A = 1C 2. rate of heat transfer across A is more than across B 3. rate of heat transfer across both is not same 4. temperature difference across A is 5°C
plz. ans. this with reason..........
| A wall has two layers A and B each made of the different materials. The thickness of both the layers is the same. The thermal conductivity of A, KA = 3 KB (thermal conductivity of B). The temperature across the wall is 20°C in thermal equilibrium | ||
| 1. | the temperature difference across A = 1C | |
| 2. | rate of heat transfer across A is more than across B | |
| 3. | rate of heat transfer across both is not same | |
| 4. | temperature difference across A is 5°C | |
Radhika Batra , 11 Years ago
Grade 11
