Four identical rods which have thermally insulated lateral surfaces are joined at point O . Points A , B , C and D are connected to furnaces maintained at constant temperatures. If the heat flows into

Question

Four identical rods which have thermally insulated lateral surfaces are joined at point $O$ . Points $A$ , $B$ , $C$ and $D$ are connected to furnaces maintained at constant temperatures. If the heat flows into the junction $O$ from $A$ at the rate of 2 J/s and from $B$ at 4 J/s and flows out towards $C$ at 8 J/s, choose the correct relation(s) (Figure 4.44):

TestHub · Accepted Answer

The heat flowing into O is 2 + 4 = 6 J/s, and 8 J/s leaves toward C . The missing 2 J/s must flow in from D . The rods are identical, so equal flows from A and D mean T A ​ = T D ​ . C.

Physics - Heat & Thermo Question with Solution | TestHub

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