Q. If thermal conductivity of a material of wall varies as ko (1 - ?t ). The temperature at the centre of the wall will be (Solved)
1. Same as in case of constant thermal conductivity
2. More than that in case of constant thermal conductivity
3. Less than that in case of constant thermal conductivity
4. Depends on other factors
5. None of the above
- c. Less than that in case of constant thermal conductivity