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Консультация № 194317
29.12.2018, 13:27
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Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
В центре полого шара из диэлектрика с диэлектрической проницаемостью ɛ находится точечный заряд Q. Радиусы сферических поверхностей полого шара R и 6R. Найти напряжённость электрического поля на расстояниях R/2, 4R и 7R от центра полого шара.
В центре полого шара из диэлектрика с диэлектрической проницаемостью ɛ находится точечный заряд Q. Радиусы сферических поверхностей полого шара R и 6R. Найти напряжённость электрического поля на расстояниях R/2, 4R и 7R от центра полого шара.
Обсуждение
04.01.2019, 10:31
общий
это ответ
Здравствуйте, Zarefo10!
Вычислим искомые величины напряжённости электрического поля. Получим
где
Н*м2/Кл2 -- электрическая постоянная.
Вне диэлектрика напряжённость поля точечного заряда может быть вычислена по теореме Гаусса, внутри диэлектрика она уменьшается в
раз.
Литература. Савельев И. В. Курс общей физики. Том 2: Электричество и магнетизм. Волны. Оптика. -- М.: Наука, 1978. -- Т.2 -- 480 с.
Вычислим искомые величины напряжённости электрического поля. Получим
где
Н*м2/Кл2 -- электрическая постоянная.Вне диэлектрика напряжённость поля точечного заряда может быть вычислена по теореме Гаусса, внутри диэлектрика она уменьшается в
раз.Литература. Савельев И. В. Курс общей физики. Том 2: Электричество и магнетизм. Волны. Оптика. -- М.: Наука, 1978. -- Т.2 -- 480 с.
5
Об авторе:
Facta loquuntur.
Facta loquuntur.
04.01.2019, 15:36
общий
Адресаты:
"Вне диэлектрика напряжённость поля точечного заряда может быть вычислена по теореме Гаусса, внутри диэлектрика она уменьшается в раз." - этого и не хватало для решения, обыскался уже. Благодарю!
04.01.2019, 15:38
общий
Адресаты:
Zarefo10 "Вне диэлектрика напряжённость поля точечного заряда может быть вычислена по теореме Гаусса, внутри диэлектрика она уменьшается в раз." - этого и не хватало для решения, обыскался уже.
Насколько мне известно, ЗФТШ МФТИ разрабатывает для своих учеников учебно-методические пособия. Вы ими пользуетесь?
Об авторе:
Facta loquuntur.
Facta loquuntur.
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