Three rod of some dimensions are arranged as shown in the figure. They have thermal conductivities k1, k2 & k3. The points A and B are maintained at different temperature .

Heat and Thermal ExpansionHard

Question

Three rod of some dimensions are arranged as shown in the figure. They have thermal conductivities k₁, k₂ & k₃. The points A and B are maintained at different temperature .

Options

A.k₃ = 2 (k₁ + k₂)

B.k₃ =

C.k₃ = k₁ + k₂

D.k₃ = (k₁ + k₂)

Solution

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