Three identical rods 
and 
are placed end-to-end. A temperature difference is maintained between the free ends of 
and 
. The thermal conductivity of 
is thrice that of 
and half of that of 
. The effective thermal conductivity of the system will be ( 
is the thermal conductivity of 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Given, 
and 
A | B | C |
Rods are in series form, so
= 
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