The two ends of a metal rod are maintain...

The two ends of a metal rod are maintained at temperatures `100^(@)C` and `110^(@)C` . The rate of heat flow in the rod is found to be `4.0 J//s`. If the ends are maintained at temperatures `200^(@)C` and `210^(@)C`, the rate of heat flow will be :

`44.0 Js^(-1)`

`16.8 Js ^(-1)`

`8.0 Js^(-1)`

`4.0 Js^(-1)`

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