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Explain the concept of critical thickness of insulation with expression
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1.diffusion
1.mother board 2.primery memory 3.output devices 4.printer 6.output device
The addition of insulation in some cases may reduce thermal resistance due to the reduction in convective thermal resistance because of increase in surface area as in case of cylinder and sphere. It may be shown that the thermal resistance actually
Conduction is the transfer of energy from the more energetic particles of a substance to the adjacent less energetic ones as a result of interactions between the particles. Conduction can take place in solids, liquids, or gases. In gases and liquids

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