Khan Academy
Khan Academy: Electrostatics: Electric Potential Energy
Get introduced to electrical potential energy by relating it to the concept of gravitational potential energy in this video. Learn how to calculate the amount of work it takes to move a charge through an electric field. [12:36]
Khan Academy
Khan Academy: Electric Charge, Field, and Potential: Electric Field
We can think of the forces between charges as something that comes from a property of space. That property is called the electric field. [13:33]