SATHEE: Properties Of Solids And Liquids Question 437

Properties Of Solids And Liquids Question 437

Question: The two ends of a metal rod are maintained at temperatures $100^{\circ} C$ and $110^{\circ} C$ . The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures $200^{\circ} C$ and $210^{\circ} C$ , the rate of heat flow will be

Options:

A) 16.8 J/s

B) 8.0 J/s

C) 4.0 J/s

D) 44.0 J/s

Show Answer

Answer:

Correct Answer: C

Solution:

[c] As the temperature difference $Δ T = 10^{\circ} C$ 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.

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Properties Of Solids And Liquids Question 437

Question: 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

Options:

Answer:

Solution:

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Question: The two ends of a metal rod are maintained at temperatures $100^{\circ} C$ and $110^{\circ} C$ . The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures $200^{\circ} C$ and $210^{\circ} C$ , the rate of heat flow will be