Comment on ‘On the electrostatic potential and electric field of a uniformly charged disk’

IF 0.6 4区教育学 Q4 EDUCATION, SCIENTIFIC DISCIPLINES

European Journal of Physics Pub Date : 2023-09-25 DOI:10.1088/1361-6404/acf81c

P Martín-Luna, B Gimeno, D Esperante

引用次数: 0

Abstract

Abstract In a recent paper (Bochko and Silagadze 2020 Eur. J. Phys. 41 045201), the authors carried out an analytical effort to arrive at an expression for the electrostatic potential and electric field of a uniformly charged disk everywhere in space. They obtained that the radial electric field has a term proportional to the Dirac delta function. In this comment, it is demonstrated that this term is not correct.

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对《关于匀荷圆盘的静电势和电场》一文的评析

在最近的一篇论文(Bochko和Silagadze 2020欧元)中。J. Phys. 41 045201)，作者进行了一项分析工作，以得出空间中各处均匀带电圆盘的静电势和电场的表达式。他们得到了径向电场的项与狄拉克函数成正比。在这个评论中，它证明了这个术语是不正确的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Physics 物理-物理：综合

CiteScore

1.70

自引率

28.60%

发文量

128

审稿时长

3-8 weeks

期刊介绍： European Journal of Physics is a journal of the European Physical Society and its primary mission is to assist in maintaining and improving the standard of taught physics in universities and other institutes of higher education. Authors submitting articles must indicate the usefulness of their material to physics education and make clear the level of readership (undergraduate or graduate) for which the article is intended. Submissions that omit this information or which, in the publisher''s opinion, do not contribute to the above mission will not be considered for publication. To this end, we welcome articles that provide original insights and aim to enhance learning in one or more areas of physics. They should normally include at least one of the following: Explanations of how contemporary research can inform the understanding of physics at university level: for example, a survey of a research field at a level accessible to students, explaining how it illustrates some general principles. Original insights into the derivation of results. These should be of some general interest, consisting of more than corrections to textbooks. Descriptions of novel laboratory exercises illustrating new techniques of general interest. Those based on relatively inexpensive equipment are especially welcome. Articles of a scholarly or reflective nature that are aimed to be of interest to, and at a level appropriate for, physics students or recent graduates. Descriptions of successful and original student projects, experimental, theoretical or computational. Discussions of the history, philosophy and epistemology of physics, at a level accessible to physics students and teachers. Reports of new developments in physics curricula and the techniques for teaching physics. Physics Education Research reports: articles that provide original experimental and/or theoretical research contributions that directly relate to the teaching and learning of university-level physics.