The goal of this experiment is to measure the rate of heat transfer of copper and steel and compare. The rate of heat transfer

$$ H = \frac{k A \Delta T}{L} $$

where $k$ is thermal conductivity which has the units [W m^{-1} K$^{-1}$], $A$ is the cross-sectional area of the conductor, $L$ is its length and $\Delta T$ is the difference in temperature between the two ends of the conductor.

Using a Vernier calipers measure the radius of the rods and from the radius ($r$) calculate $A=\pi r^2$.

Using a thread and a meter scale measure the length $L$ of the rods.

Measure the temperature changes and note down in the following table.