These devices, though quite humble, represented a tremendous breakthrough in the history of electricity; they were the first capacitors, and as such were able to store electric charge. (Java tutorial)

Get information about rotating magnetic fields and how electric machines use them for their operation. Discusses synchronous speed and number of poles on an electrical machine. The accompanying article discusses the topics found in the...

Compasses had been steering people in the right direction for many centuries when, in the year 1820, one particular compass made a very different sort of revelation to an unsuspecting Danish science professor.

Wikipedia.com provides an excellent introductory site on magnets. Including basic information describing different types of magnets and their characteristics.

Invented decades before it could be used, the first type of electric light was so brilliant it was used for lighthouses and street lamps.

A current can be induced in a conducting loop if it is exposed to a changing magnetic field. (Java tutorial)

This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 3 of 4 in the series titled "Electric Circuits."

In 1831, Michael Faraday carried out numerous experiments to prove that electricity could be generated from magnetism. He not only demonstrated electromagnetic induction, but also developed a good conception of the processes involved....

If you want to understand electricity, you first need to know a little about matter, atoms and electrons.

The legendary Lord Kelvin made electricity from water with this ingenious electrostatic generator. (Java tutorial)

A collection of video lectures from a course that explores the application of electrical engineering topics. Webpage includes twenty-eight lectures from a professor at the University of California, Berkeley. Lectures vary in length and...

Like resistance, reactance slows an electrical current down. Explained by Lenz's Law, this phenomenon occurs only in AC circuits. (Java tutorial)

Did you know that not all trains run on tracks? Some of the world's fastest trains are magnetic levitation trains (maglev). This means that the carriage of the train is suspended over the rails with no support, but only with magnetic...

This article surveys inductance and its different forms. It discusses numerous topics associated with inductance such as Faraday's Law, self and mutual inductance, inductors, and magnetic field lines.

Svante Arrhenius was born in Vik, Sweden, and became the first native of that country to win the Nobel Prize. The award for chemistry was bestowed to him in honor of his theory of electrolytic dissociation. Arrhenius also developed the...

Theoretical physicist Richard Phillips Feynman greatly simplified the way in which the interactions of particles could be described through his introduction of the diagrams that now bear his name (Feynman diagrams) and was a co-recipient...

Robert Andrews Millikan was a prominent American physicist who made lasting contributions to both pure science and science education. He is particularly well known for his highly accurate determination of the charge of an electron via...

Einstein Light highlights the Theory of Special Relativity and related topics. Learn how Galileo, Maxwell, and Einstein contributed to our knowledge of relativity, electricity, magnetism, and time by watching fun, interactive modules.

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

This site boasts an extensive list of physics animations that cover topics such as electricity, magnetism, quantum mechanics, and relativity. Variables can be manipulated for each demonstration.

Students will work in small groups to design at least one complete circuit using multiple materials. They will record their observations of how they created an electrical circuit using diagrams and notes in their journals. Using a...

On line course on Electricity and Magnetism for graduate credit or professional development, that emphasizes hands on activities you can use in your classroom.

An electromagnetic induction model that simulates an electric generator made from a conducting loop rotating in a uniform magnetic field and connected to an ammeter.

Explains electrical resistance and how it is measured using the formula for Ohm's Law.