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28. Si consideri una regione di spazio in cui è presente un campo magneto-statico. Cosa è corretto affermare? A) La circuitazione del campo magnetico attorno a una qualunque linea chiusa è nullaB) Il flusso del campo magnetico su una qualunque su una qualunque superficie chiusa è diversoda zeroC) Data una superficie chiusa qualunque, tutte le linee di campo si chiuderanno dentro alla superficieD) Data una superficie chiusa qualunque, se sono presenti linee di campo entranti allora sono presenti anche linee uscentiE) Nessuna delle precedenti
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