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Консультация № 194580
03.02.2019, 17:57
0.00 руб.
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1
1
Здравствуйте! Прошу помощи в следующем вопросе:
Отрезок прямолинейного проводника с током имеет длину 30 см. При каком предельном расстоянии а от него для точек, лежащих на перпендикуляре к его середине, магнитное поле можно рассматривать как поле бесконечно длинного прямолинейного тока? Ошибка при таком допущении не должна превышать 5%. Допускаемая ошибка δ=(H2-H1)/H2, где H1 – напряжённость поля от отрезка проводника с током и H2 – напряжённость поля от бесконечно длинного прямолинейного тока. Сделать рисунок.
Желательно с рисунком.
Отрезок прямолинейного проводника с током имеет длину 30 см. При каком предельном расстоянии а от него для точек, лежащих на перпендикуляре к его середине, магнитное поле можно рассматривать как поле бесконечно длинного прямолинейного тока? Ошибка при таком допущении не должна превышать 5%. Допускаемая ошибка δ=(H2-H1)/H2, где H1 – напряжённость поля от отрезка проводника с током и H2 – напряжённость поля от бесконечно длинного прямолинейного тока. Сделать рисунок.
Желательно с рисунком.
Обсуждение
09.02.2019, 10:35
общий
это ответ
Здравствуйте, dar777!
Используя формулы на страницах 307 -- 308 источника, указанного в конце ответа, мы получим
что при
м даёт
м,
то есть
м.
Вы можете использовать рисунок 21.1, б, заменив в нём
на 
и обозначив через 
длину отрезка проводника.
Литература. А. Г. Чертов, А. А. Воробьёв. Задачник по физике. -- М.: Издательство физико-математической литературы, 2001. -- 640 с.
Используя формулы на страницах 307 -- 308 источника, указанного в конце ответа, мы получим
что при
м даёт м,то есть
м.Вы можете использовать рисунок 21.1, б, заменив в нём
на и обозначив через длину отрезка проводника.Литература. А. Г. Чертов, А. А. Воробьёв. Задачник по физике. -- М.: Издательство физико-математической литературы, 2001. -- 640 с.
5
Это самое лучшее решение!
Об авторе:
Facta loquuntur.
Facta loquuntur.
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