Summary

In this section you must know Maxwell's equations,

$$\nabla \times {{\bf B}\over \mu} = {\bf J} + {\partial \over \partial t}\left (\epsilon {\bf E}\right ),$$

$$\nabla \times {\bf E} = -{\partial {\bf B}\over \partial t},$$

$$\nabla \cdot {\bf B} = 0,$$

$$\nabla \cdot {\bf E} = {\rho_{c}\over \epsilon},$$

and the meaning of every symbol.

State the Biot-Savart law for generating the magnetic vector potential from a known current distribution.

Know the potential and the field components for Point charges.

Sketch electric field lines for simple distributions of charges. Know the potential and fields lines for Electric and Magnetic dipoles.