Thermal conductivity of a metal rod depends on :

area of cross section

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temperature gradient

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time of flow of heat

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none of these

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Solution

The correct option is D none of these
Thermal conductivity is characteristic to the material and doesn't depend on any of the factors given.
In fact, heat flow depends on the factors given in options list.

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Similar questions

A

l

K

The thermal conductivity of a rod depends on

1.0 m

100 c m^{2}

100^{o} C

0^{o} C

= 100 W / k g / K

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