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There Metal Walls of Same Cross-Sectional Area Having Thermal Conductivity

Question 46

Multiple Choice

There metal walls of same cross-sectional area having thermal conductivity in the ratio 1 : 2 : 4 transfer heat at the rate of 15000 kcal/hr. For same thickness of wall, the temperature deop will be in the ratio


A) 1 ; 2 ; 4
B) 1 :
C) 4 ; 2 ; 1
D) 1 ; 1 ; 1

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