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The three rods shown in figure have iden...

The three rods shown in figure have identica dimensions. Heat flows from the hot end at a rain of 40 W in the arrangement (a). Find the rates of heat flow when the rods are joined as in arrangement (b). (Assume `k_(AJ) = 200 W/m ‘^(@)C` and `K_(Cu) = 400 Wim ‘^(@)C`)

A

75 W

B

200 W

C

400 W

D

4 W

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