Heat and Thermal ExpansionHard

Question

Twelve conditioning rods from the sides of a uniform cube of side l. If in steady state, B and H ends of the cube are 100oC and 0oC respectively. Find the temperature of the junction ′A′ : -

Options

A.80oC
B.60oC
C.40oC
D.70oC

Solution

For the cube, net resistance =
(Where R = Thermal resistance of each side)
         H =
For side A
          ⇒ θA = 60oC

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