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Conduction

The coefficie...

Question

The coefficient of thermal conductivity of a metallic rod does not depend upon :

A

the length of the rod

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B

the cross-sectional area of the rod

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C

the temperature difference between the ends of the rod

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D

the nature of the metal

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Solution

The correct options are
A the cross-sectional area of the rod
B the length of the rod
C the temperature difference between the ends of the rod
Coefficient of $T h e r m a l$ $C o n d u c t i v i t y$ is the internal property of the metal and is independent of all the $e x t e r n a l$ properties of the material.
So Coefficient of $T h e r m a l$ $C o n d u c t i v i t y$ is independent of dimensions, temperatures and other external factors too. It only depend on nature of material.

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