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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, K A = 3 K B (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
plz.    ans. this with reason..........


Grade:11

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