The outer faces of rectangular slab of equal thickness of iron and ...

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The outer faces of rectangular slab of equal thickness of iron and brass are maintained at \( 100{ }^{\circ} \mathrm{C} \) and \( 0{ }^{\circ} \mathrm{C} \) respectively. Find the temperature of the interface. The conductivities of iron and brass are \( 44 \cdot 2 \) and \( 260 \cdot 4 \mathrm{~W} \mathrm{~m}^{-1} \mathrm{~K}^{-1} \) respectively.
\( \mathrm{P} \)
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