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Консультация № 200102
16.01.2021, 17:46
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Здравствуйте! У меня возникли сложности с таким вопросом:
В однородном магнитном поле с индукцией В = 0.4 Тл в
плоскости, перпендикулярной линиям индукции поля, вращается
стержень длиной l = 10 см. Ось вращения проходит через один из
концов стержня, Определить разность потенциалов U на концах
стержня при частоте вращения n = 16 с-1.
вакууме (с = 3.108 м/с).
Приложение:
спасибо
В однородном магнитном поле с индукцией В = 0.4 Тл в
плоскости, перпендикулярной линиям индукции поля, вращается
стержень длиной l = 10 см. Ось вращения проходит через один из
концов стержня, Определить разность потенциалов U на концах
стержня при частоте вращения n = 16 с-1.
вакууме (с = 3.108 м/с).
Приложение:
спасибо
Обсуждение
17.01.2021, 19:49
общий
Здравствуйте! У меня возникли сложности с таким вопросом:
В однородном магнитном поле с индукцией В = 0.4 Тл в
плоскости, перпендикулярной линиям индукции поля, вращается
стержень длиной l = 10 см. Ось вращения проходит через один из
концов стержня, Определить разность потенциалов U на концах
стержня при частоте вращения n = 16 с-1.
вакууме (с = 3.108 м/с).
помогите пожалуйста
В однородном магнитном поле с индукцией В = 0.4 Тл в
плоскости, перпендикулярной линиям индукции поля, вращается
стержень длиной l = 10 см. Ось вращения проходит через один из
концов стержня, Определить разность потенциалов U на концах
стержня при частоте вращения n = 16 с-1.
вакууме (с = 3.108 м/с).
помогите пожалуйста
21.01.2021, 17:07
общий
это ответ
Здравствуйте, Tip!
На свободные электроны в стержне, движущиеся вместе с ним в магнитном поле, будет действовать сила Лоренца. Электроны будут смещаться вдоль стержня, пока сила Лоренца не будет уравновешена силой со стороны электрического поля, возникшего в стержне за счет разности потенциалов между разноименными зарядами, возникшими на его концах. Пусть r - расстояние вдоль стержня от оси вращения. Тогда напряженность поля внутри стержня будет изменяться по закону:
где V = [$969$]r = 2[$960$]nr - линейная скорость вращения и 0 < r < l. Разность потенциалов будет равна
В данном случае n = 16 с[sup]-1[/sup], B = 0.4 Тл, l = 10 см = 0.1 м и
На свободные электроны в стержне, движущиеся вместе с ним в магнитном поле, будет действовать сила Лоренца. Электроны будут смещаться вдоль стержня, пока сила Лоренца не будет уравновешена силой со стороны электрического поля, возникшего в стержне за счет разности потенциалов между разноименными зарядами, возникшими на его концах. Пусть r - расстояние вдоль стержня от оси вращения. Тогда напряженность поля внутри стержня будет изменяться по закону:
где V = [$969$]r = 2[$960$]nr - линейная скорость вращения и 0 < r < l. Разность потенциалов будет равна
В данном случае n = 16 с[sup]-1[/sup], B = 0.4 Тл, l = 10 см = 0.1 м и
Форма ответа
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