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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferMedium2 min

PhysicsMediumsingle choice

Six identical conducting rods are joined as shown in Figure 4.41. Points $A$ and $D$ are maintained at temperatures $20 0^{\circ}$ C and $2 0^{\circ}$ C respectively. The temperature of junction $B$ will be:

Options:

Answer:

Solution:

Rod $A B$ is one rod. Between $B$ and $C$ there are two parallel paths of two rods each, a resistance of $r$ . $C D$ is one rod. The total is $3 r$ . The drop across $A B$ is $\frac{180}{3} = 60$ , so $T_{B} = 200 - 60 = 14 0^{\circ}$ C. C.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

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