Explains what alternating current and direct current are and what they are used for.

Article explores direct current circuits, alternating current circuits, and the nervous system.

[Free Registration/Login may be required to access all resource tools.] Describes the difference between direct current and alternating current.

The Canada Science and Technology Museum answers some of the most common questions about electricity. For example, get the definition of electricity, the difference between alternating and direct currents, and learn how a fuse works.

This lesson focuses on Mains Electricity and Alternating Current. Electrical supplies can be direct current (DC) or alternating current (AC). The UK mains electricity supply is about 230V at 50 Hz. It explains the difference between AC...

[Free Registration/Login may be required to access all resource tools.] Defines electric current and relates electric current to different materials (insulators and conductors).

A summation of the War of the Currents featuring Nikola Tesla and Thomas Edison against a backdrop of The Columbian Exposition and an execution.

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

Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.

Read here about the industrial "war" that took place between the patents on alternating and direct current.

Kids learn about electric current in the science of physics including the flow of electrons, measurement, alternating, and direct current.

Illustration showing the difference between a direct current and an alternating current.

This lesson focuses on Electrical circuits including standard symbols for electrical components, a list of components and what they do, a discussion of various types of resistors, and alternating current and direct current. Links to a...

Illustrated explanation of voltage, current, and resistance and the relationship between them.

Students learn about static electricity using terms such as friction, induction, and conduction. They also explain and illustrate the difference between alternating and direct current, and understand the relationship among voltage,...

This highly informative site contains many resources and articles on electricity. A wealth of information about electricity can be found. This site also contains many FAQ's.

Use this site to learn about the inventor of the electro-magnetic motor, Nikola Tesla. Find out why Tesla's experimentation with alternating current was so important to later inventions and use of electricity.

This article provides information regarding Nikola Tesla, inventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current electricity supply...

After building a simple electric motor from a kit, with this experiment you can explore how voltage affects motor speed. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction,...

This "magneto-electric machine" was the first to turn motion into electricity. (Java tutorial)

This simple device uses a few components to rectify the alternating current (AC) from the shake-a-gen, store it in a capacitor and convert it into a steady direct current (DC). The output can be used to run a low power device. It is also...

A short summary of resistance and how it is measured. Including information on AC and DC.

Kid's learn more about the science of electricity. How its measured and generated.

Take this 10 question multiple choice quiz on electricity and magnetism.