Ring magnets and disk magnets exhibit distinct behaviors when dropped through a copper tube, influencing the strength of eddy currents generated. The field line dynamics differ significantly between the two types of magnets, affecting effective induction. Specifically, a rotating disk magnet develops a non-zero charge distribution, while a rotating ring magnet remains uncharged. These differences are critical for understanding the induction effects in electromagnetic applications.
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A current carrying ring does not behave the same as a disk magnet in all curcumstances. For example, if the current carrying ring is rotating then the ring will remain uncharged. However when a disk magnetc is rotating then the disk will have a non-zero charge distribution, although the net charge will remain the same. See proof I wrote and paced on my website at - http://www.geocities.com/physics_world/em/rotating_magnet.htmrobhlee said:what i am asking about is are there field line dynamics that can affect the effective induction.