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 $ \Delta 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.
