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Не разматывая катушку найти длину
нихромовой проволоки намотанной на неё, если при подключении к сети 120В, возникает ток 1,2А. Площадь разреза проволоки 0,55мм²-
Предмет:
Физика -
Автор:
aileenv0qm - 5 лет назад
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Ответы 1
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R=U/IR=p*L/sU/I=p*L/sL=U*S/I*p=120*0,55/1,1*1,2=50 м
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Автор:
miss kittyclay - 5 лет назад
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