Cosmic charge limited currents

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International Conference on "Ethics and 
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COSMIC CHARGE LIMITED CURRENTS
 
 
Sariboev Laziz 
Candidate of Physics and Mathematics Sciences of Karakalpak State University 
Ibraimova Nasiba Nagmetulla 
Karakalpak State University, 2nd year graduate student in Physics 
Abstract: It is known that when designing any device and equipment, the first step is to start 
with the implementation of theoretical calculations. This is because the researcher has an indication 
of the initial parameters of the equipment to be created without any losses. Latest science and 
technology and information. 
- Computer programming, which is a product of communication development, creates ample 
conditions for the realization of the above goal. As a result, it is possible to achieve effective 
implementation of scientific and research works through modeling. 
Space charge is an additional concept, electric charge is considered as a constant charge distributed 
over a space region (or volume or area) rather than a specific point-like charge. This model is usually 
used when charge carriers are ejected from some region of the solid - a cloud of ejected carriers can 
form a space charge region if they are sufficiently spread out, or charged atoms or molecules 
remaining in the solid can form a space charge region. 
Space charge is only in dielectric media (including vacuum) because in conductive media the charge 
tends to neutralize quickly or is shielded. The sign of space charge can be negative or positive. This 
situation is probably the most familiar metal in the region near a when it is heated object 
incandescence a vacuum. This effect was first observed by Thomas Edison in the filaments of the 
light bulb, where it is sometimes called the Edison effect. Space charge in many vacuums and solid 
electronic devices. 
Space charge is an integral feature of all vacuum tubes. This sometimes made life difficult or easier 
as electrical engineers used tubes in their designs. For example, space charge greatly limited the 
practical use of triode amplifiers, leading to further innovations such as the vacuum tube tetrode. 
Space charge, on the other hand, is useful in some tube applications because it induces a negative 
EMF in the tube envelope that can cause negative faults in the tube grid. In addition to the control 
voltage, it is also possible to achieve network failure by using the applied network voltage. This can 
improve the engineer's control and amplification fidelity. This made it possible to build space 
charging tubes for car radios that require only 6 or 12 volt anode voltage (usually 6DR8 / EBF83, 
6GM8 / ECC86, 6DS8 / ECH83, 6ES6 / EF97 and 6ET6 / EF98). 
Space charges can also be inside dielectrics. For example, when a gas passes near a high-voltage 
electrode, dielectric breakdown occurs, electric charges are introduced into the region near the 
electrode, creating regions of space charge in the surrounding gas. Space charges can also appear in 
solid or liquid dielectrics under high stress electric fields. Space charges trapped in solid dielectrics 
are often the cause of dielectric failure in high voltage power cables and capacitors. 
Space charge reduces noise.[11] Shot noise is caused by the random occurrence of a discrete charge; 
statistical variation of arrivals creates noise.[12] Develops a potential that slows down space charge 
carriers. For example, an electron approaching a cloud of other electrons slows down due to 

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International Conference on "Ethics and 
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158
repulsion. Decelerating carriers also increase the space charge density and the resulting potential. In 
addition, the potential developed by the space charge can reduce the number of emitted carriers.[13] 
When the space charge limits the flow, the random arrival of carriers is smoothed out; reduced 
variation produces less noise.[12] 
References: 
1. Moreau, E.; Mayou, C.; Laurent, C.; Boudet, A. (February 1993), "Structural Properties of Water 
Trees in Electrical Cables and Laboratory Specimens", IEEE Transactions on Electrical 
Insulation, IEEE, 28(1): 54–64, doi:10.1109/14.192240, ISSN 0018- 9367 
2. Hennuy, Blandinia; Marginet, Joachim; Francois, Alain; Platbrud, Gerard; Tiets, Yvan; De Klerk, 
Quentin (June 2009), Medium Voltage Water Tree XLPE Cables: Very Short Time Accelerated 
Aging Tests (PDF), Prague, Paper 1060 
3. Child, D. D. (May 1, 1911). "Discharge from hot CaO". Physical review. I series. 32 (5): 492–
511. Bibcode: 1911PhRvI...32...492C. doi: 10.1103 / PhysRevSeriesI.32.492. 
4. Langmuir, Irving (1913). "Effects of Space Charge and Residual Gases on Thermionic Currents 
in High Vacuum". Physical review. 2 (6): 450–486. Bibcode:1913PhRv .... 2..450L. doi:10.1103 / 
PhysRev.2.450.