Figure shows a conductor rod of non uniform cross- section. The ends of the rod are maintained at constant temperatures $100^{\circ} C$ and $0^{\circ} C$ respectively. At steady state, temperatures of P, Q, R and S are $T_{P}, T_{Q}, T_{R} and T_{S}$ respectively, then:

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Infinity Learn · Accepted Answer

Along length of $$conductordQdt=$$ constant ⇒$$dQdt=KAdTdx=constant$$⇒$$AdT=constantAPQ$$>$$ARSAPQ=Area$$ of $$cross-section$$ at point $$PARS=Area$$ of $$cross-section$$ at point R∴ΔTPQ<ΔTRSTherefore, the correct answer is (C).

Figure shows a conductor rod of non uniform cross- section. The ends of the rod are maintained at constant temperatures $100^{\circ} C$ and $0^{\circ} C$ respectively. At steady state, temperatures of P, Q, R and S are $T_{P}, T_{Q}, T_{R} and T_{S}$ respectively, then:

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Figure shows a conductor rod of non uniform cross- section. The ends of the rod are maintained at constant temperatures 100∘C and 0∘C respectively. At steady state, temperatures of P, Q, R and S are TP,TQ,TR and TS respectively, then:

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Figure shows a conductor rod of non uniform cross- section. The ends of the rod are maintained at constant temperatures $100^{\circ} C$ and $0^{\circ} C$ respectively. At steady state, temperatures of P, Q, R and S are $T_{P}, T_{Q}, T_{R} and T_{S}$ respectively, then: