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Консультация № 190739
18.03.2017, 03:50
0.00 руб.
0
5
1
Здравствуйте! У меня возникли сложности с таким вопросом:
Как, используя компас, определить полярность клемм неизвестного источника тока?
Как, используя компас, определить полярность клемм неизвестного источника тока?
Обсуждение
18.03.2017, 12:34
общий
это ответ
Здравствуйте, svrvsvrv!
Ответ на Ваш вопрос содержится в рисунке ниже.
(Помимо компаса, как минимум, нужна ещё проволока.) Как я понимаю, правый конец витка на рисунке оказывается подключённым к клемме "+", а левый - к клемме "-", в соответствии с принятым соглашением о направлении тока.
Можно стать перед стрелкой, расположить стрелку между клеммами и соединить их проводом. Ток, который потечёт по проводу, создаст магнитное поле. Это поле будет действовать на магнитную стрелку, вызывая её отклонение. Если северный конец стрелки отклонится от нас, то слева расположена клемма «+». Рисунок ниже иллюстрирует это.
Про другие способы определения полярности клемм источника постоянного тока можно прочитать здесь.
Ответ на Ваш вопрос содержится в рисунке ниже.
(Помимо компаса, как минимум, нужна ещё проволока.) Как я понимаю, правый конец витка на рисунке оказывается подключённым к клемме "+", а левый - к клемме "-", в соответствии с принятым соглашением о направлении тока.
Можно стать перед стрелкой, расположить стрелку между клеммами и соединить их проводом. Ток, который потечёт по проводу, создаст магнитное поле. Это поле будет действовать на магнитную стрелку, вызывая её отклонение. Если северный конец стрелки отклонится от нас, то слева расположена клемма «+». Рисунок ниже иллюстрирует это.
Про другие способы определения полярности клемм источника постоянного тока можно прочитать здесь.
5
Спасибо.
Об авторе:
Facta loquuntur.
Facta loquuntur.
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