1. State the continuity equation and discuss its physical interpretation.
2. Distinguish between the physical interpretations of the divergence and the curl of a vec- tor field by means of examples.
3. State the divergence theorem and discuss its application.
4. What is the divergence of the curl of a vector?
5. Summarize Maxwell's equations in differential form.
6. Are all Maxwell's equations in differential form independent? If not, which of them are independent?
7. Provide a qualitative explanation of the phenomenon of electromagnetic wave propa- gation based on Maxwell's equations in differential form.