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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasysingle choice

A wall is made of two equally thick layers $A$ and $B$ . The conductivity of $A$ is four times that of $B$ . The temperature difference across the wall is $5 0^{\circ}$ C. Find the temperature difference across $A$ in $^{\circ}$ C.

Options:

Answer:

Solution:

$Δ T \propto \frac{1}{k}$ , so $Δ T_{A} : Δ T_{B} = 1 : 4$ . $Δ T_{A} = \frac{1}{5} \times 50 = 1 0^{\circ}$ C. C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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