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PQ is a metal...

Question

PQ is a metal bar (insulated at curved surface) containing a section XY of a material of lower thermal conductivity. Ends P and Q are maintained at different temperatures. In steady state, the temperature difference across XY would depend on

A

Temperature difference between P and Q

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B

The metal with which the bar is made

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C

The thickness of section XY

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D

The distance of section XY from end P

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Solution

The correct options are
A Temperature difference between P and Q
B The metal with which the bar is made
C The thickness of section XY
The temperature across XY depends on the temperature difference across PQ, the ratio of thermal conductance of XY and the metal bar.

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