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The two ends of a metal rod are maintain...

The two ends of a metal rod are maintained at temperatures `100^(@)Cand110^(@)C`. The rate of flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures `200^(@)Cand210^(@)C`, the rate of heat flow will be :

A

8.0 J/s

B

4.0 J/s

C

44.0 J/s

D

16.8 J/s

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The correct Answer is:
B
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