veliciny magnetickeho pola Flashcards

1
Q

opis magneticke napatie

A

budiace napatie dane prudom pretekajuci vodicmi/zavitmi cievky

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2
Q

ako vypocitas magneticke napatie

A

Um = N x velke i [A] (N - pocet zavitov, I - prud tecuci vodicmi/zavitmi)

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3
Q

ako vypocitas intenzitu

A

H = Um/male l [A x m^-1] (l - 2 x Pi x r - dlzka silociary)
[H] = henry

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4
Q

ako vypocitas indukciu

A

B = μ x H [T] - dana hustotou silociar na 1m^2 feromag. latky
B(so sipkou) = μ x H(so sipkou)
[T] = tesla
μ = permeabilita

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5
Q

aka je permeabilita prostredia

A

μ = μ0 x μr
μ0 = 4Pi x 10^-7

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6
Q

ako vypocitas mag. indukcny tok

A

Ф = B x S [Wb] - mnozstvo indukcnych ciar
[Wb] = weber

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