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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumsingle choice

A wall has two layers $A$ and $B$ , each made of a different material. Both layers are of the same thickness. The thermal conductivity of material $A$ is twice that of $B$ . If in the steady state the temperature difference across the wall is $2 4^{\circ}$ C, then the temperature difference across the layer $B$ is:

Options:

Answer:

Solution:

$Δ T \propto \frac{1}{k}$ , so $Δ T_{A} : Δ T_{B} = 1 : 2$ . $Δ T_{B} = \frac{2}{3} \times 24 = 1 6^{\circ}$ C. C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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