Qhov seem flux density yog ib qho alias rau qhov sib nqus induction siv, uas qhia ntau npaum li cas ntawm cov magnetic teb kab perpendicularly dhau los ntawm ib cheeb tsam. Sib nqus flux ceev, hu ua magnetic flux density, quantitatively qhia qhov ceev ntawm magnetic kab ntawm quab yuam.
