A rod CD of thermal resistance 5.0KW(-1)...

A rod `CD` of thermal resistance `5.0KW_(-1)` is joined at the middle of an identical rod `AB` as shown in figure. The ends `A`,` B` and `D` are maintained at `100^(@)C` , `0^(@)C` and `25^(@)C` respectively. Find the heat current in `CD`.

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The correct Answer is:

4.0 W

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