PBS
Pbs Learning Media: Ac Versus Dc: What's the Difference?
This animated essay from "American Experience" explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator. [2:27]
Other
Chris Mahl: Ac vs. Dc
Teacher Chris Mahl explains the differences between alternating current and direct current. [6:23]
Derek Owens
Derek Owens: Physics: Dc and Ac
Identify and understand the differences between direct and alternating currents. [8:29]
Khan Academy
Khan Academy: Application of the Fundamental Laws (Setup)
We can solve circuits by the direct application of the fundamental laws: Ohm's Law and Kirchhoff's Laws. (Part 1 of 2) [8:01]