Sunday, 5 May 2024, 1:42 PM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
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SECONDARY EMISSIONThe liberation of electrons from an element, other than the cathode, as a result of being struck by other high-velocity electrons [6]. |
SECONDARY LOOPIn a cooling system, the loop that transfers the heat from the heat source, such as electronic equipment, to the primary loop; usually distilled water [18]. |
SELECTIVITYThe ability of a receiver to select the desired signal and reject unwanted signals [9] [17]. |
SELENIUMA chemical element with light-sensitive properties that makes it useful as a semiconductor material in metallic rectifiers [7]. |
SELF-BIASIn a vacuum tube circuit, the voltage developed by the flow of current through a resistor in the grid or cathode leads [6]. |
SELF-EXCITED GENERATORSDC generators in which the generator output is fed to the field to produce field excitation [5]. |
SELF-EXCITED METERA term used to describe meters that operate from their own power sources [16]. |
SELF-INDUCTION(1) The production of a counterelectromotive force in a conductor when its own magnetic field collapses or expands with a change in current in the conductor [2]. (2) The phenomenon caused by the expanding and collapsing fields of an electron that encircle other electrons and retard the movement of the encircled electrons [10]. |
SELF-LUMINOUS BODIESObjects that produce their own light [10]. |
SELF-SYNCHRONIZED RADARA type of radar in which the timing pulses are generated within the transmitter [18]. |