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Momento de dipolo magnético.
Momento de dipolo magnético, chamado também de Neutonário, também referido simplesmente como momento magnético, é uma grandeza vetorial representada pela letra grega μ ou pela letra m[1] e definida como IAn, onde I é a intensidade da corrente (ver Ampère), A, o módulo da área limitada pelo circuito eléctrico e n, o vector unitário normal ao plano do circuito. Quando se tratar de um solenóide, m = NIA (N é o nº de voltas do fio e A o vetor correspondente à área limitada pelo circuito eléctrico).[2][3]
Referências
- ↑ Não confundir com a constante μ0 = 4π × 10−7 T.m/A, permeabilidade do vazio.
- ↑ Serway, Jewett, "Physics For Scientists And Engineers" 6ª edição
- ↑ Paul A. Tipler, Gene Mosca, "Physics for Scientists and Engineers" 5ª edição.
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