Two rods A and B of different materials are welded together as shown in figure. Their...

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Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K, and K. The thermal conductivity of the composite rod will be: [2017] (a) 3(K+K) 2 (b) K, + K (c) 2 (K, + K) K +K (d) 2 B d Two rods A and B of different materials are welded together as shown in figure. Their thermal conductivities are K, and K. The thermal conductivity of the composite rod will be: [2017] (a) 3(K+K) 2 (b) K, + K (c) 2 (K, + K) K +K (d) 2 B d

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