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In figure shows an aluminium rod joined to a copper rod. Each of the rods has a length of 20 cm and area of cross section 0.20cm2. The junction is maintained at a constant temperature 40∘ and the two ends are maintained at 80∘. Calculate the amount of heat taken out from the cold junction in one minute after the steady state is reached. The conductivities are KAl=200Wm−1∘C−1 and KCu=400Wm−1∘C−1 40∘C80∘C Aluminium Copper 80∘C |
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Answer» In figure shows an aluminium rod joined to a copper rod. Each of the rods has a length of 20 cm and area of cross section 0.20cm2. The junction is maintained at a constant temperature 40∘ and the two ends are maintained at 80∘. Calculate the amount of heat taken out from the cold junction in one minute after the steady state is reached. The conductivities are KAl=200Wm−1∘C−1 and KCu=400Wm−1∘C−1 40∘C80∘C Aluminium Copper 80∘C |
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