Two rods of same material, $$cross-section$$ and length are welded end to end. The temperature difference across the ends of the composite rod is $$100$$°C. $$10$$ cal of heat flows through tie combination in $$10$$ minutes. lf the rods are welded side by side how much time will $$10$$ cal heat take to go across the combination ?

Question

Infinity Learn · Accepted Answer

KAΔTl×$$t1=K(2A)$$Δ$$Tl/2t2t2=t14=104=2$$⋅$$5$$ second.

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