Practice questions related to circuits and capacitors.

A rather mathematical explanation of a capacitor. Gives all the appropriate formulae, with many hotwords for further info.

This site features numerous interactive resources (such as simulations, interactive exercises, experiments, etc.) designed for teachers and students of the physical sciences. Some of the resources are available only on CD-ROM, but most...

A simulation investigating a parallel-plate capacitor which is charged by connecting one plate to the positive end of a battery, and the other plate to the negative end. The battery sends electrons from one capacitor plate to the other...

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.

An electrical circuit simulation modeling a resistor, capacitor, and inductor in a series. Vary the resistance, capacitance, inductance and source frequency in the simulation.

An electrical circuit simulation modeling the behavior of a voltage source attached in a series to a resistor and capacitor.

Shows how simple harmonic motion is used in a circuit comprised of an inductor and a capacitor. Includes detailed formula derivation utilizing calculus.