Physics4kids
Physics4 Kids: Electricity and Magnetism: Current
Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.
Physics Aviary
Physics Aviary: Practice Problems: Parallel Circuit
Determine the amount of current that is present in a parallel circuit.
Tech Target
What Is: Alternating Current (Ac)
This site provides a brief explanation of what an AC current is.
Tech Target
What Is: Resistance
A short summary of resistance and how it is measured. Including information on AC and DC.
Walter Fendt
Walter Fendt: Direct Current Electrical Motor
This simulation is an example of an elementary operation of a DC motor, showing its main parts.
Upper Canada District School Board
Tom Stretton's Chemistry Pages: Electric Circuits
Learn the voltage formula for determining a measure of current electricity in this illustrated presentation.
University of Wisconsin
University of Wisconsin: 5 Magnetism
From an online teacher demonstration book. Includes a description and explanation of five demonstrations on a variety of magnetism topics. Interesting and captivating demos.
Science4Fun
Science4 Fun: Ohm's Law
Brief explanation of Ohm's Law which provides the relationship between current, voltage, and resistance.
Wolfram Research
Wolfram Science World: Alessandro Volta
This site from ScienceWorld provides a very short biographical sketch of Alessandro Volta and describes his most notable scientific discoveries and contributions. Several links are also provided for additional information.