Transmission Of Heat Question 283
Question: The quantity of heat which crosses unit area of a metal plate during conduction depends upon
Options:
A) The density of the metal
B) The temperature gradient perpendicular to the area
C) The temperature to which the metal is heated
D) The area of the metal plate
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{dQ}{dt}=KA\frac{d\theta }{dl} $
$ \Rightarrow $ $ \frac{dQ}{dt}\propto \frac{d\theta }{dl} $ (Temperature gradient)