Two rods of same length and material transfer a given amount of heat in 12 s, when they are joined end-to-end. But when they are joined lengthwise, then they will transfer same heat in same conditions in
Text Solution
Verified by ExpertsThe correct answer is:
B
Let the heat transferred be Q.
When rods are joined end-to-end (series). Heat transferred by each rod,
… (i)
When rods are joined lengthwise (parallel),
… (ii)
As the same amount of heat is transferred
From Eqs. (i) and (ii), we get 
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