旋转带电棒的阻滞电位和辐射

Q4 Social Sciences

Revista Mexicana De Fisica E Pub Date : 2023-01-13 DOI:10.31349/revmexfise.20.010214

Aldrin Cervantes Contreras, Marco Ramirez Olvera, Lucio López Cavazos, Jose Alonso López Miranda, Adolfo Huet Soto

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引用次数: 0

摘要

本文确定了以非恒定角频率绕x轴旋转的带电棒的电磁特性。由于电荷的位置随时间变化，电磁信息到达我们这里有一定的时滞。因此，有必要获得空间中任何一点的时变(延迟)电位，为此我们需要多极展开来确定空间中任何一点的场，并对我们想要测量电磁场的距离在静态和感应区进行泰勒展开。然后，我们确定了相应辐射区内的坡印亭矢量。最后，我们确定了辐射功率，强调了问题的对称性，并展示了我们如何在考虑这些对称性的情况下解决问题。

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Retarded potentials and radiation of a rotating charged rod

In this paper we determine the electromagnetic properties of a rotating charged rod, which rotates around the x-axis with an angular frequency that it’s not constant. As the charge is changing its position over time, the electromagnetic information reaches us with a certain time lag. Therefore, it is necessary to obtain the time-dependent(retarded) potentials at any point in space, for which we need multipolar expansion to determine the field at any point in space and do a Taylor expansion of the distance at which we want to measure the electromagnetic fields, in the static and induction zone. Then, we determine the Poynting vector in the corresponding radiation zone. Finally, we determine the radiated power, emphasizing the symmetries of the problem and showing how we can approach its solution considering these symmetries. .

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来源期刊

Revista Mexicana De Fisica E 社会科学-科学史与科学哲学

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Revista Mexicana de Física (Rev. Mex. Fis.) publishes original papers of interest to our readers from the physical science com unity. Language may be English or Spanish, however, given the nature of our readers, English is recommended. Articles are classified as follows: Research. Articles reporting original results in physical science. Instrumentation. Articles reporting original contributions on design and construction of scientific instruments. They should present new instruments and techniques oriented to physical science problems solutions. They must also report measurements performed with the described instrument. Reviews. Critical surveys of specific physical science topics in which recent published information is analyzed and discussed. They should be accessible to physics graduate students and non specialists, and provide valuable bibliography to the specialist. Comments. Short papers (four pages maximum) that assess critically papers by others authors previously published in the Revista Mexicana de Física. A comment should state clearly to which paper it refers.