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Create: 2025-06-21 Update: 2025-07-09 14:18:57

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Наш новый англоязычный ролик посвящён одному из базовых понятий электродинамики — понятию электрического поля, и при этом мы ограничиваемся рамками электростатики. Вообще-то для описания взаимодействия неподвижных зарядов достаточно представления о дальнодействующих силах и можно обойтись без введения поля.

По-настоящему понятие поля работает в электродинамике движущихся зарядов. Поэтому не случайно впервые электромагнитное поле как особый объект стал рассматривать Майкл Фарадей в своих исследованиях электромагнитной индукции, а на электростатику понятие поля было перенесено, так сказать, обратным ходом.

И всё же изображение электрического поля с помощью силовых линий и семейства всюду перпендикулярных им эквипотенциальных поверхностей весьма полезно. Умение читать и чертить такие карты электрических полей значительно углубляет понимание явлений электростатики и готовит к изучению электродинамики.

И конечно, в ролике обсуждается силовая характеристика создаваемого электрическими зарядами поля — его напряжённость, а также единицы её измерения.

Смотрите англоязычный ролик «Electric field» и не забывайте ставить лайки!

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P.S. Предлагаем также посмотреть русскоязычную версию фильма «Электрическое поле» на различных платформах.

GetAClass - физика и здравый смысл

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Electric field

What is an electric field? Physicists answer this question as follows: electric field is created in the space around electric charges and is detected by the action on electric charges.

Key words: force lines, equiponential surfaces, superposition principle…

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