Electronics

Preamble

Electronics has penetrated widely in our daily lives:

• laptops,

• equipment of our cars,

• computers,

• media players,

• household appliances.

•.......

DefinitionWhat is electronics?

1. Electronics is the science of controlling the movement of electrons.

2. Electronics is a branch of applied physics, dealing, among other things, with the formatting and management of electrical signals, for example, for the transmission or reception of information. The adjective "electronic" also refers to what is related to the electron.

Materials and Current in Electronics

a. Conductors:

  • Conductors are materials that allow the easy flow of electrical current.

  • Examples of conductors (e.g., copper, aluminum, and silver)

  • Their properties are low resistance and good conductivity.

b. Insulators:

  • Insulators are materials that do not allow the flow of electrical current.

  • Examples of insulators (e.g., rubber, glass, plastic).

  • Their properties are high resistance and poor conductivity.

• The excellent conductivity of copper and its alloys explains its large-scale use in the electronics industry. Copper allows electronic installations to operate faster, reduce heat formation and last longer: in short, have ever higher performance.

Note

Electronics is the domain by excellence of “low currents” with a level of intensity of the order of the millisampere.

Electronics professions:

The professional fields that represent the electronics professions are in the following areas:

  • Audiovisual-multimedia equipment.

  • Computer equipment.

  • Professional audiovisual equipment.

  • Housing comfort equipment (Electrodomestique).

  • Household appliances.

  • Alarm and security equipment.

  • Telecommunications equipment and networks.

  • Electronic equipment on board.

  • Observation, analysis and measurement instrumentation equipment.