Physics

Problem

Heat flows steadily through an aluminium rod of length

1.0\,\text{m}

and cross-sectional area

1.0\times10^{-4}\,\text{m}^2

. If the thermal conductivity of aluminium is

205\,\text{W m}^{-1}\text{K}^{-1}

and the heat current measured is

2.0\,\text{W}

, determine the temperature difference between the ends of the rod.