Electronics- the elements of circuit which helps in its functioning.
by Axel Ace Boaquiña
1. Active Components- used in electronic circuits
1.1. Tube Devices and semiconductor devices
1.1.1. Diodes- The simplest semiconductor device, allowing the current to flow in one direction. Produced when crystals of pure silicon are doped so that a junction is formed between the p-type and n-type region.
1.1.2. Transistor- Looks like two diodes joined back to back It consists of three layers of semiconductors --- two thick layers of the same type (either n – or p- type) at both ends, with a thin layer of another type sandwiched in between.