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Two rods A and B of same cross-sectional...

Two rods A and B of same cross-sectional area A and length l are connected in series between a source `(T_(1)=100^(@)C)` and a sink `(T_(2)-0^(@)C)` as shown in figure. The rod is laterally insulated.

The ratio of the thermal resistance of the rods is

A

`(R_(A))/(R_(B))=(1)/(3)`

B

`(R_(A))/(R_(B))=3`

C

`(R_(A))/(R_(B))=(3)/(4)`

D

`(R_(A))/(R_(B))=(4)/(3)`

Text Solution

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The correct Answer is:
A
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