-Write Ohm's law in two different ways. Describe the terms using physics words (force, velocity, constant...)
-How and why does Ohm's Law differ from Newton's second law?
-Make sure you can explain the different factors that affect resistivity in Figure 2.8.
-Why might the resistivity value for a material differ from source to source (say if you looked it up in two different tables).
-What is the temperature dependence of residual resistivity?
-How do impurities influence scattering, drift mobility, and resistivity? Why?
-What is Matthiessen's Rule?
-What is the temperature coefficient of resistivity? What gives resistivity a temperature dependence?
- Look at Figure 2.6. Explain the difference in temperature dependence of resistivity for NiCr and copper.
-What is Nordheim's Rule?
-Explain the difference between the solid line in Figure 2.10b and that in Figure 2.11.
Important terms you should know
-scattering center
-free electron concentration for metals
-resistivity/ conductivity
-Matthiessen's Rule
-residual resistivity
-Nordheim's rule
Go to the textbook website and check out these solved problems (in the "Solved Problems" section.