Define Electronics
The science and technology concerned with the development, behaviour, and applications of electronic devices and circuits.The branch of engineering that deals with the design and practical application of machinery and equipment for efficient communication.
Basic Elements
Conductors : A conductor is something which allows electricity to flow through. An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Pure elemental silver is the best electrical conductor encountered in everyday life. Copper, steel, gold, aluminum, and brass are also good conductors. In electrical and electronic systems, all conductors comprise solid metals molded into wires or etched onto circuit boards.
At extremely low temperatures, some metals will conduct electricity better than any known substance at room temperature. This phenomenon is called superconductivity, and a substance that behaves that way is called a superconductor.
Substances called semiconductors act as good conductors under some conditions and poor conductors under other conditions. Silicon, germanium, and various metal oxides are examples of semiconductor materials. In a semiconductor, both electrons and so-called holes (electron absences) act as charge carriers.
Insulators : A substance that does not conduct electricity is called an insulator or dielectric material.It keep close hold of their electrons and donot allow free movements of electrons.Glass,Wood,plastic etc are good insulators.
The science and technology concerned with the development, behaviour, and applications of electronic devices and circuits.The branch of engineering that deals with the design and practical application of machinery and equipment for efficient communication.
Basic Elements
Conductors : A conductor is something which allows electricity to flow through. An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Pure elemental silver is the best electrical conductor encountered in everyday life. Copper, steel, gold, aluminum, and brass are also good conductors. In electrical and electronic systems, all conductors comprise solid metals molded into wires or etched onto circuit boards.
At extremely low temperatures, some metals will conduct electricity better than any known substance at room temperature. This phenomenon is called superconductivity, and a substance that behaves that way is called a superconductor.
Substances called semiconductors act as good conductors under some conditions and poor conductors under other conditions. Silicon, germanium, and various metal oxides are examples of semiconductor materials. In a semiconductor, both electrons and so-called holes (electron absences) act as charge carriers.
Insulators : A substance that does not conduct electricity is called an insulator or dielectric material.It keep close hold of their electrons and donot allow free movements of electrons.Glass,Wood,plastic etc are good insulators.