Question

In the given conical distorted shape of rod heat is being conducted under steady state. The two ends are maintained at different temperature. Now choose the correct alternative –

• A. The rate of heat flow will not be constant through the rod
• B. The magnitude of temperature gradient increase from left to right
• C. The temperature at mid point will be $\frac{3T}{2}$
• D. The temperature at mid point will be less than $\frac{3T}{2}$

Answer 1

Answer: (B)

The magnitude of temperature gradient increase from left to right

Answer 2

$\frac{d\theta}{dt}$ = KA $\left( \frac{–dT}{dx} \right)$ so $\left( –\frac{dT}{dx} \right)$ µ $\frac{1}{A}$