American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Rc Circuit With Battery Model
Simulation showing the simplest RC circuit, with a resistor and capacitor in series with one another, and a battery that can be switched in the series, or switched out of the circuit.
Intel Corporation
Intel Education: Circuits and Switches
By comparing household electricity to household plumbing, this tutorial makes the concepts of electricity easier to understand. Includes video clips and interactive activities; click on "Instructional Strategies" for teacher resources...