The two ends of a rod of length L and a uniform cross-sectional area A kept at two temperatures T 1 and T 2 (T 1 >T 2 ). The rate of heat transfer, 
, through the rod in a steady state is given by
A
= 
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
For a rod of length L and area of cross-section A whose faces are maintained at temperature T 1 and T 2 respectively.
Then in steady state the rate of heat flowing from one face to the other face in time t is given by
The curved surface of rod is kept insulated from surrounding to avoid leakge of heat
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