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The Thermal Conductivity of a Rod Depends on - Physics

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Question

The thermal conductivity of a rod depends on

  • length

  • mass

  •  area of cross section

  •  material of the rod

Solution

material of the rod

The thermal conductivity of a rod depends only on the material of the rod. For example, metals are much better conductors than non-metals because metals have large number of free electron that can move freely anywhere in the body of the metal and carry thermal energy from one place to other. Also, 2 copper rods having different lengths and areas of cross-section have same thermal conductivity that depends only on the number of free electrons in copper.

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APPEARS IN

 HC Verma Solution for Concepts of Physics - Vol. 2 (2018 to Current)
Chapter 6: Heat Transfer
MCQ | Q: 1 | Page no. 97
Solution The Thermal Conductivity of a Rod Depends on Concept: Thermal Expansion of Solids.
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