Q. The quantity of heat which crosses per unit area of a metal plate during conduction depends upon
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
Explanation
(b) $\frac{dQ}{dt} = KA\frac{d\theta}{dl} \Rightarrow \frac{dQ}{dt} \propto \frac{d\theta}{dl}$ [Temperature gradient]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.