Self Assessment Quiz

1. What is the qualitative variation of the resistivity of a metallic material with temperature ?

3. In an ideal metal, what do you expect the resistivity to be at very low temperatures (nearly 0 K) ?

3. In a real metal, on what factors does the residual resistivity (extrapolated zero-temperature resistivity) depend on ?

4. Which are the various contributions to the heat capacity of a metallic material ?

5. From measurements at low-temperatures, how can one determine the contributions to heat capacity from electrons and phonons ?