By Francesco ing. Belfiore
Circuiti magnetici e loro soluzione. l. a. riluttanza magnetica. los angeles legge di Hopkinson o di Ohm magnetica. Circuiti magnetici serie e loro soluzione. Metodo delle f.m.m. parziali. Metodo delle riluttanze. Circuiti magnetici parallelo e loro soluzione. Circuito magnetico serie realizzato con un magnete permanente.
Energia all’interno di un campo magnetico. Energia specifica e sua unità di misura. Energia specifica in un materiale non ferromagnetico. Energia specifica in un materiale ferromagnetico. Calcolo dell’energia dissipata in un ciclo di isteresi, formulation di Steinmetz. Forza portante consistent with un elettromagnete e in step with un magnete permanente. Corrente di scatto di un relè. Forza succhiante di un solenoide percorso da corrente.
La forza elettromotrice indotta. Legge di Lenz. F.e.m. indotta in una spira rotante in un campo magnetico uniforme. F.e.m. indotta in un conduttore in movimento in un campo magnetico uniforme.
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