Electronic Physics

What is Electronic Physics?

Electronic Physics is a branch of physics that deals with the behavior, properties, and applications of electronic devices, circuits, and systems. It encompasses the study of electronic components such as diodes, transistors, and integrated circuits, as well as electronic phenomena like conductivity, electron flow, and semiconductor behavior.

What are Semiconductors?

Semiconductors are materials with electrical conductivity between that of conductors and insulators. They are crucial in electronic devices because their conductivity can be manipulated by factors such as temperature, impurities, and electric fields. Silicon and germanium are commonly used semiconductor materials.

What is the Difference Between Conduction in Metals and Semiconductors?

In metals, conduction occurs primarily due to the movement of free electrons, which are abundant. In semiconductors, conductivity is influenced by both free electrons and “holes” (absence of electrons in the valence band). The conductivity of semiconductors can be significantly altered by doping and external factors.

What is a Diode?

A diode is a two-terminal electronic component that allows current to flow in only one direction. It has low resistance to current in one direction (forward bias) and high resistance in the opposite direction (reverse bias). Diodes are commonly used in rectifiers, voltage regulators, and signal demodulation circuits.

What is a Transistor?

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It consists of three layers of semiconductor material, forming either an NPN or PNP structure. Transistors are fundamental building blocks of modern electronic devices such as computers, televisions, and radios.