Correct Answer - Option 3 : Increase
option(3)
CONCEPT:
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Conduction is the mechanism of transfer of heat between two adjacent parts of a body because of their temperature difference.
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Conduction is mostly seen in solids and liquids because the particles are very close within them than in gases, where particles are further apart.
The rate of heat transfer is given by:
q = -kA\(\frac{dT}{dx}\)
Where q is the rate of heat transfer, k is the conductivity of the material, and dT/dx is the temperature gradient.
EXPLANATION:
The rate of heat transfer is given by:
q = -kA\(\frac{dT}{dx}\)
Heat Transfer ∝ Temperature difference
- Thus we can say that, the greater the temperature difference, the more will be the rate of heat transfers.
- Hence option 3 is correct.
- Suppose if you put one end of a metallic rod near a flame, after a while, you can not touch the last end of the rod which you were held.
- This happens due to heat transfer.
