Electron Flow

The fundamentals of electricity is the movement of electrons at an atomic level from areas that are crowded with electrons (a negative charge) to areas that don't have as many electrons (a positive charge). Traditionally, electron flow is shown to flow from positive to negative terminals.

Questions on electron flow appear in the 2330-202, 2330-301 and the 2357-309 exams.

Electron flow in a conductor

Electron flow in an insulator

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Where would a rectifier be used?

There are many situation where it is convenient to convert from a.c. to d.c. Many electronic appliances run on d.c. and battery chargers as examples.

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