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Two rectangular rods of thermal resistan...

Two rectangular rods of thermal resistances 5 `kw^(-1) and 10 kw^(-1)` are joined in series combination. Their equivalent thermal resistance will be

A

`15 kw^(-1)`

B

`3.33 kw^(-1)`

C

`7.5 kw^(-1)`

D

`6.67 kw^(-1)`

Text Solution

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The correct Answer is:
A
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