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[" Two metal cubes with "3" cm-edges of copper and aluminium are arranged as shown in figure "],[(K_(cu)=385W/m-K,K_(AL)=209W/m-K)],[" (a) The total thermal current from one reservoir to the other is "vdots],[[" (A) "1.53times10^(3)W," (D) "2.53times10^(3)W],[" (b) The ratio of the thermal current carried by the copper cube to that carried by the "],[" (A) "1.79," (B) "1.69]]

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