Physics

Problem

A copper bar of length

0.50\,\text{m}

and cross-sectional area

2.0\,\text{cm}^2

has its ends maintained at

100\,^{\circ}\text{C}

and

0\,^{\circ}\text{C}

. If the thermal conductivity of copper is

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

, calculate the steady heat current through the bar.