The ends of a copper rod of length and cross-sectional area are maintained at and

PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter

Problem

The ends of a copper rod of length

1\,\text{m}

and cross-sectional area

1\,\text{cm}^2

are maintained at

0^\circ\text{C}

and

100^\circ\text{C}

. At the centre of the rod there is a heat source of power

25\,\text{W}

. Calculate the temperature gradient in the two halves of the rod in steady state. The thermal conductivity of copper is

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