In these videos and articles the definition of electric charge will be given as well as a discussion of the law of conservation of charge. You'll learn how Coulomb's law relates the electric force to charge and separation distance. The difference between an electrically conducting vs. electrically insulating material will also be discussed.
In these videos and articles you'll learn the difference between electric potential, electric potential energy, and voltage. You'll also learn how to calculate the electric potential at a point in space, electric potential energy between two charges, and voltage between two points in space.