A partition wall has two layers of different materials A and B in cont – McqOptions

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1.	A partition wall has two layers of different materials A and B in contact with each other. They have the same thickness but the thermal conductivity of layer A is twice that of layer B. At steady state the temperature difference across the layer B is 50 K, then the corresponding difference across the layer A is
A.	50 K
B.	12.5 K
C.	25 K
D.	60 K
Answer» D. 60 K

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