- thermionic value
- Electrical and Electronics Engineeringவெப்ப அயனி வால்வு
English-Tamil dictionary. 2014.
English-Tamil dictionary. 2014.
Thermionic emission — Closeup of the filament on a low pressure mercury gas discharge lamp showing white thermionic emission mix coating on the central portion of the coil. Typically made of a mixture of barium, strontium and calcium oxides, the coating is sputtered… … Wikipedia
thermionic power converter — ▪ electronics Introduction also called thermionic generator, thermionic power generator, or thermoelectric engine any of a class of devices that convert heat directly into electricity using thermionic emission rather than first… … Universalium
Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… … Wikipedia
Diode — Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left) … Wikipedia
Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… … Wikipedia
electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… … Universalium
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia
Electric current — Electromagnetism … Wikipedia
Work function — In solid state physics, the work function is the minimum energy (usually measured in electron volts) needed to remove an electron from a solid to a point immediately outside the solid surface (or energy needed to move an electron from the Fermi… … Wikipedia
Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism … Wikipedia
Schmitt trigger — In electronics, a Schmitt trigger is a comparator circuit that incorporates positive feedback.When the input is higher than a certain chosen threshold, the output is high; when the input is below another (lower) chosen threshold, the output is… … Wikipedia