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Thermal resistance of two metallic plate...

Thermal resistance of two metallic plates of same material and cross -section joined in series are 3 and 4 respectively. What is thermal resistance of the combination ?

A

`3//4`

B

`4//3`

C

`7`

D

`1//7`

Text Solution

Verified by Experts

The correct Answer is:
C

In series `R_(5)=R_(1)+R_(2)" "R_(5)=3+4=7`
Thus correct choice is (c).
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