Предмет: Физика, автор: litrioy2704

Хелпуйте )) в некоторых приборов проявления магнитного поля нежелательный . каких приборах используется бифилярная намотка : провод скручивают вдвое так чтобы оба его конца оказались рядом .в чем смысл такой намотки?

Ответы

Автор ответа: Dedagenn
20

Ответ:

Провода лежат параллельно, а токи направлены в противоположные стороны, в этом случае магнитные поля токов двух жил будут гасить друг друга по всей длине такой цепи, в итоге общее магнитное поле будет нулевым, то есть индуктивность катушки будет близка к нулю.

Если это проволочный резистор, то он практически безындуктивный

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