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Консультация № 199388
22.10.2020, 22:58
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Уважаемые эксперты! Пожалуйста, ответьте на вопрос:
Длинный прямой металлический цилиндр радиуса R заряжен с линейной плотностью заряда λ (лямбда).
Какова зависимость объемной плотности энергии электрического поля от расстояния r до оси
цилиндра (ε = 1 (эпсилон))?
Длинный прямой металлический цилиндр радиуса R заряжен с линейной плотностью заряда λ (лямбда).
Какова зависимость объемной плотности энергии электрического поля от расстояния r до оси
цилиндра (ε = 1 (эпсилон))?
Обсуждение
29.10.2020, 17:00
общий
это ответ
Здравствуйте, meowmurmeow!
Объемная плотность энергии электрического поля с напряжённостью E определяется выражением
В свою очередь напряжённость поля равномерно заряженного цилиндра радиуса R с линейной плотностью заряда [$955$] на расстоянии r>R от его оси равна
(внутри цилиндра напряжённость равна 0), поэтому
Объемная плотность энергии электрического поля с напряжённостью E определяется выражением
В свою очередь напряжённость поля равномерно заряженного цилиндра радиуса R с линейной плотностью заряда [$955$] на расстоянии r>R от его оси равна
(внутри цилиндра напряжённость равна 0), поэтому
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