Some Basic Things About Electronic Devices

Lets see some basic things about electronics.......  :)

What is electronics ?

An Electronic Circuit

Electronics is the branch of physics and technology concerned with the design of circuits using transistors and microchips, and with the behavior and movement of electrons in a semiconductor, conductor, vacuum, or gas.

In other words, Electronics is the science of how to control electric energy, energy in which the electrons have a fundamental role.

What are Electronic Devices ?

An electronic component is any physical entity in an electronic system used to affect the electrons or their associated fields in a manner consistent with the intended function of the electronic system.Components are generally intended to be connected together, usually by being soldered to a Printed Circuit Board (PCB), to create an electronic circuit with a particular function (for example an amplifier, Radio or Music Player). Components may be packaged singly, or in more complex groups as integrated Circuits. Some common electronic components are Capacitors, inductors, resistors, diodes etc. Components are often categorized as active (e.g. transistors and thyristors) or Passive (e.g. resistors, diodes, inductors and capacitors).

Active Devices

Active Devices

Active devices are the electronic components which can control the flow of the electrons electrically. An electronic circuit must contain at least one active device. 

         e.g. Transistors, Thyristors etc.

Passive Devices

Passive Devices

The electronic components which are not capable of controlling the current (Flow of electrons) by the application of electrical signals are called passive devices.

           e.g. resistors, capacitors, diodes etc.