Lecture
This lecture covers the concept of electric fields, the gradient of scalar functions, and the application of Gauss's law to relate the amount of charges to the electric field. The instructor explains how to calculate work done on a charge, introduces the concept of flux, and delves into the Gauss law, both in integral and differential forms. The lecture concludes with a discussion on the divergence of the electric field and its relation to charge density, providing insights into the behavior of field lines around charges.