Магнитное поле (11) Flashcards

1
Q

Сила Ампера

A

Fа = iBlsinα

α - угол между направлением I и B “Ампер бил сына”

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2
Q

Сила Лоренса

A

Fл = qvBsinα

α - угол между v и B

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3
Q

Магнитный поток

A

Ф = BScosα

α - угол между B и НОРМАЛЬЮ к поверхности

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4
Q

ЭДС индукции (закон Фарадея)

A

ε = |𐤃Ф|/𐤃t = Ф’

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5
Q

ЭДС проводника, движущегося в МП

A

ε = Bvlsinα

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6
Q

ЭДС самоиндукции

A

εi = -L 𐤃I/𐤃t

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7
Q

Индуктивность по определению

A

L = Ф/I или Ф = LI

[Ф] = [Вб]

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8
Q

Энергия магнитного поля

A

WL = LI2/2 = ФI/2 = Ф2/2L

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