2born (2born) wrote,

По-моему, тут ничего нового нет, но методически может быть полезно, пусть будет

A novel method to calculate the electric field using solid angles
Fulin Zuo
A new method to calculate the electric field inside a spherical shell with surface charge in terms of solid angle is presented. The integral can be readily carried out without invoking special functions typically used for this classical problem. For a flat surface of uniform charge density, the electric field normal to the surface is shown to be proportional to the solid angle subtended by the surface only.
Tags: КлЭД, Мегаучебник или Что я читал и похвалил, разгребая arXiv'ы

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