electronics for beginners

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electron flow - Electrical current produced by the movement of free electrons towards a positive terminal.
electron - Smallest sub atomic particle of negative charge that orbits the nucleus of an atom.
free electrons - Electrons that are not in any orbit around a nucleus.

Drawing Circuits
Drawing Circuits When designing circuits it is not practical to draw physical likenesses of the components you wish to use. In place of each component a symbol is use to represent it. For example:


Semiconductors
Semiconductors Semiconductors are quite possible one of the most important things in the modern world. The are made from crystals and can act as conductors or insulators in different circumstances.

Basics
The Basics Electricity is essential not only to life but to every element we know of. It is one of the build blocks of atoms, and that is the best place to start to understand electricity. In case

Diodes
Diodes Diodes are one of the most common semiconductor devices. As we know from the last page, both N and P type silicon conduct electricity. The conductivity (or resistance) of both is by how doped

Switches
Switches The are many types of switches but in this section we'll just go into mechanical switches. Switches allow or stop the flow of current or control which path it is to take. The simplest swi