Discusses the magnetic field induced by a moving charge and the vector potential of a magnetic field, along with Maxwell's equations and the Poisson equations.
Explores the derivation and implications of the 4th Maxwell's equation, emphasizing the importance of charge conservation and the role of displacement current.
Explores charge density, electric field, Coulomb's law, and electric potential relationships, including forces between charges and the dominance of gravitational and electrostatic forces.