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The two ends of a metal rod are maintained at temperatures 100°C and 110°C. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200°C and 210°C, the rate of heat flow will be
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- 16.8 J/s
- 8.0 J/s
- 4.0 J/s
- 44.0 J/s
Correct Option: C
As the temperature difference ∆T = 10°C as well as the thermal resistance is same for both the cases, so thermal current or rate of heat flow will also be same for both the cases.
