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Three metal rods made of copper aluminium and brass each 20 cm long and 4...

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Three metal rods made of copper aluminium and brass each 20 cm long and 4 cm in diameter are placed end to en with aluminium between the other two The free ends of copper and brass are maintained at 100 and 0 C respectivel Assume that the thermal conductivity of copper is twice that of aluminium and four times that of brass The equilibrium temperatures of the copper aluminium and aluminium brass junctions are respectively 1 68 C and 75 C 2 75 C and 68 C 3 57 C and 86 C 4 86 C and 57 C

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