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Консультация № 202856
21.05.2022, 10:28
0.00 руб.
21.05.2022, 11:03
0
2
1
Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
Электрическое поле создано бесконечной плоскостью с поверхностной плотностью заряда [$963$]=200 нКл/м2 и бесконечной нитью с линейной плотностью [$964$]=0,1 мкКл/м, проходящей параллельно плоскости на расстоянии а=0,2 м. Определить напряженность поля в точке на расстоянии b=0,5 м от плоскости и c=0,3 м от нити.
Электрическое поле создано бесконечной плоскостью с поверхностной плотностью заряда [$963$]=200 нКл/м2 и бесконечной нитью с линейной плотностью [$964$]=0,1 мкКл/м, проходящей параллельно плоскости на расстоянии а=0,2 м. Определить напряженность поля в точке на расстоянии b=0,5 м от плоскости и c=0,3 м от нити.
Обсуждение
21.05.2022, 16:12
общий
Адресаты:
Нужную Вам напряжённость поля можно вычислить, используя принцип суперпозиции. В заданной точке вычисляете Электрическое поле от плоскости, затем Электрическое поле от нити. В конце сложите 2 вектора геометрически.
Вам в помощь учебная статья "Электрическое поле плоскости" alsak.ru/item/353-7.html (Ссылка1)
и примеры решённых задач: "2 плоскости разно-заряженные" rfpro.ru/question/198186,
"2 бесконечные параллельные пластины равномерно заряжены…" Ссылка3,
"Линейная плотность заряда" rfpro.ru/question/199144.
Дальше сами справитесь?
Вам в помощь учебная статья "Электрическое поле плоскости" alsak.ru/item/353-7.html (Ссылка1)
и примеры решённых задач: "2 плоскости разно-заряженные" rfpro.ru/question/198186,
"2 бесконечные параллельные пластины равномерно заряжены…" Ссылка3,
"Линейная плотность заряда" rfpro.ru/question/199144.
Дальше сами справитесь?
21.05.2022, 21:03
общий
это ответ
Здравствуйте.
Дано:
[$963$]=200 нКл/м2=2*10-7Кл/м2
[$964$]=0,1 мкКл/м=10-7Кл/м
а=0,2 м
b=0,5 м
c=0,3 м
Найти: Е
Решение:
1. Напряженность поля бесконечной плоскости
E1=[$963$]/(2[$949$]0)=2*10-7/(2*8,85*10-12)=1,13*103В/м
2. Напряженность поля бесконечной нити
E2=[$964$]/(2[$960$][$949$]0c)=10-7/2*3,14*8,85*10-12*0,3)=0,60*103В/м
3. Суммарная напряженность
E=E1+E2=(1,13+0,60)*103В/м=1,7*10[sup]3[/sup]В/м
*******
Удачи
Дано:
[$963$]=200 нКл/м2=2*10-7Кл/м2
[$964$]=0,1 мкКл/м=10-7Кл/м
а=0,2 м
b=0,5 м
c=0,3 м
Найти: Е
Решение:
1. Напряженность поля бесконечной плоскости
E1=[$963$]/(2[$949$]0)=2*10-7/(2*8,85*10-12)=1,13*103В/м
2. Напряженность поля бесконечной нити
E2=[$964$]/(2[$960$][$949$]0c)=10-7/2*3,14*8,85*10-12*0,3)=0,60*103В/м
3. Суммарная напряженность
E=E1+E2=(1,13+0,60)*103В/м=1,7*10[sup]3[/sup]В/м
*******
Удачи
5
Об авторе:
С уважением
shvetski
С уважением
shvetski
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