Two rods A and B of same length and radius are joined together end to end. The thermal conductivity of A and B are $$2K$$ and K. Under steady state conditions, if temperature difference between the open ends of A and B is $$360C$$, the temperature difference across 'A' is

Question

Two rods  A and B of same length and radius are joined together end to end. The thermal  conductivity of A and B are $$2K$$  and K. Under steady state conditions, if temperature difference between  the open ends of A and B is $$360C$$, the temperature difference across 'A' is

Infinity Learn · Accepted Answer

where Δθ $$=$$ Temp. difference; Rt $$=$$ Thermal resistance $$=$$ l\kAFor the rod A, For the rod B, ⇒ ΔθB $$=$$ $$2$$.ΔθANow ΔθA $$+$$ ΔθB $$=$$ $$360C$$ΔθA $$+$$ $$2$$.ΔθA $$=$$ $$360C$$ ⇒ ΔθA $$=$$ $$120C$$

Two rods A and B of same length and radius are joined together end to end. The thermal conductivity of A and B are 2K and K. Under steady state conditions, if temperature difference between the open ends of A and B is 36⁰C, the temperature difference across 'A' is

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Two rods A and B of same length and radius are joined together end to end. The thermal conductivity of A and B are 2K and K. Under steady state conditions, if temperature difference between the open ends of A and B is 360C, the temperature difference across 'A' is

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Ready to Test Your Skills?

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Two rods A and B of same length and radius are joined together end to end. The thermal conductivity of A and B are 2K and K. Under steady state conditions, if temperature difference between the open ends of A and B is 36⁰C, the temperature difference across 'A' is