JEE Advanced | 2013Heat TransferHard
Question
Two rectangular blocks, having identical dimensions, can be arranged either in configuration I or in configuration II as shown in the figure. One of the blocks has thermal conductivity k and the other 2k. The temperature difference between the ends along the x-axis is the same in both the configurations. It takes 9s to transport a certain amount of heat from the hot end to the cold end in the configuration I. The time to transport the same amount of heat in the configuration II is :-
Options
A.2.0 s
B.3.0 s
C.4.5 s
D.6.0 s
Solution
; 
in configuration 1 ; equivalent R = 3R
in configuration 2 ; equivalent
; 
Create a free account to view solution
View Solution FreeMore Heat Transfer Questions
Out of the metal balls of same diameter one is solid and other is hollow. Both are heated to the same temperature at 300...The condition under which a microwave oven heats up a food item containing water molecules most efficiently is :-...There are two identical vessels filled with equal amount of ice, the vessels are of different metals, if the ice melts i...Heater of an electric kettle is made of a wire of length L and diameter d. It takes 4 minutes to raise the temperature o...According to Newton′s law of cooling the rate of cooling of a body is proportional to : -...