In the wires of electric circuits, an electron is the actual charge carrier. In this article, an electron's path through the external circuit is introduced.

When two or more electrical devices in a circuit can be connected, it is considered a series connection or a parallel connection. When all the devices are connected using series connections, the circuit is referred to as a series...

Khan Academy answers a question about hyperpolarization and depolarization with a written explanation and links to helpful videos.

Experience the photoelectric effect by choosing different light frequency, voltage, and metals to stop current from flowing in a circuit.

Adjust the voltage on a Van der Graaff generator to see how the charges will affect a person's hair.

Read here about "The Grid," the largest machine ever built by humans. The Grid is he giant network of high-voltage power transmission wires that covers the entire United States and much of Canada.

This simulation shows a simple circuit consisting of an AC voltage source and, depending on the button selected, a resistor, a capacitor or a coil.

This site from Georgia State University defines electric potential energy and relates it to the concept of electric potential. Discusses the idea of a reference point or a zero potential location.

Online university physics text called "Hyperphysics". Three sections here: Capacitors, Capacitor Combinations, Charge on Series Capacitors. These are nice clean lessons, good illustrations, many hotwords to assist. A fine online lesson,...

A general summary of electrical resistance including a comparison of AC and DC current.

A collection of video lectures from a course introducing students to the advanced analog integrated circuits. Webpage includes twenty-seven lectures from a professor at the University of California, Berkeley. Lectures vary in length and...

This resource provides information about a number of different types of synthesizers used from 1890 to 1980.

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

This lesson plan contains several activities designed to help the student understand the magnetic effects of an electrical current.

The National Physical Laboratory, which is the UK's National Measurement Institute, offers a Beginner's Guide to Measurements in Electronics and Electrical Engineering. Discusses how electric currents are measured and offers images.

Using an online exhibition, investigate how Mary Shelley's horror science fiction story, Frankenstein, reflects the knowledge and studies of electricity, and how those fictional ideas are used in modern medicine.

This site contains information about becoming an Electrician in New Zealand. While some of the information is specific to New Zealand, there is also data that is uniform to the career.

Find out about the German physicist and mathematician whose work in the field of electrical current shaped the study of electricity.

[Free Registration/Login may be required to access all resource tools.] Discusses how an electric transformer works and step-up and step-down transformers.

Frankenstein's electricity is out. In this activity, students help him find another source of energy using citrus fruit. Good for students who want to do their own projects or for class lessons.

Determine the rms current in an LC circuit powered by an AC power supply. Then find the frequency that will cause a spike in current in the circuit.

In this tutorial the concept of how electrical energy is transformed is introduced. Learn how electric charges actually work and take the interactive quiz to assess your understanding.

Learn how to use an oscilloscope.

This tutorial illustrates why adding bulbs to a circuit makes all the bulbs dimmer.