Coulomb's Law and its limitations. Solving problems using Coulomb's Law. 

Electric force acting between electron and proton. Speed of electrons in atoms. How big must be a shutter speed of your camera to see electrons?  

Comparing electric and gravitational interactions.

Problems with more than 2 charges. Determination of a net force (magnitude and direction) acting on a charge in a system of charges.

Concept of electric field. Test charge. Vector nature of electric field. Magnitude and direction of electric field. Units of electric field. 

Visualization of electric field. Field lines. Electric field of a point charge. 

Electric dipole.  Dipole moment. 

Superposition Principle.

Motion of charges in electric field. Torque on electric dipole.

Practice Assignments