Field Emission or Cold Cathode Emission: The metal piece can also be made to emit electrons by creating an high intensity electrostatic field near it. Such an emission of electrons…
Electron Emission Articles: Explain Bohr’s Atomic Model: Bohr’s Atomic Model – Neils Bohr, a Danish physicist, put forward his model of atom in 1913. He retained Rutherford’s model of a…
Cold Cathode Display or Nixie Tube - Operation and Characteristics: These are the most well known type of alphanumeric displays. They operate on the basis of emission of light in…
What is Electron Emission? The liberation of electrons from the surface of a substance is known as electron emission. For electron emission, metals are employed because they have many free…
Electronics Engineering Articles: This Electronics Engineering Articles which includes the following topics: Gate Turn Off Thyristor (GTO) – Symbol, Operations and Applications Types of Power Supply in Electronics What is…
Optoelectronics Articles: What is Photoelectric Effect? When monochromatic light is incident on a clean surface of a material, then under certain conditions, electrons, also called photoelectrons, are emitted from the…
Electron Tubes Articles: What is Vacuum Diode, Construction, Working and Applications: Construction of Vacuum Diode – Vacuum diode is the simplest form of the electron tube for the production and…
Ignitron Working Principle: Ignitron is a gaseous tube and consists of carbon anode, boron carbide ignitor tube and mercury pool cathode. It is a cold cathode tube and does not…