Electric Field and Charge Density

This lecture covers the concepts of charge density, electric field, Coulomb's law, Lorentz force, and the relationship between electric potential and electric field. It explains the superposition principle, conservative fields, and the demonstration of electric potential for a uniform electric field. The lecture also discusses the forces between charges, the electrostatic force between planets and stars, and the dominance of gravitational and electrostatic forces in different scenarios.