Three rods of the same dimension have thermal conductivity 3 K , 2 K and K . They are arranged as shown in the figure below Then, the temperature of the junction in steady-state is

Question

Three rods of the same dimension have thermal conductivity 3 K , 2 K and K . They are arranged as shown in the figure below Then, the temperature of the junction in steady-state is, 200 3 ° C, 100 3 ° C, 75 °C, 50 3 ° C

MARKS App · Accepted Answer

According to the figure H = H 1 + H 2 3 K A 1 0 0 - T l ⁡ = 2 K A T - 5 0 l ⁡ + K A T - 0 l ⁡ 300 - 3 T = 2 T - 100 + T 6 T = 400 Or T = 200 3 °C

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