Q465
A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when
A.
CPA > CPB
B.
CPA < CPB
C.
kA < 0.5 kB
AnswerD.
kA > 2 kB
Answer: Option C
Solution
Answer: Option C
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