Physics Classroom
The Physics Classroom: Current Electricity: Combination Circuits
Explains what a combination circuit is, reviews the features of series and parallel circuits, and demonstrates how to analyze combination circuits. Includes detailed examples and some problems for students to try. There is also a link to...
Science Struck
Science Struck: Chart of Electrical Symbols With Their Meanings
A useful list of electrical symbols that are used in schematic diagrams. Each symbol is accompanied by its name and a caption stating its function.