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I recently encountered the following practical problem. We have a system of several layers:

  1. a neodymium magnet; a disc, dimensions and grade to be determined
  2. 1 mm of 925 sterling silver; we can suppose that this is a disc, diameter 15 mm
  3. 0.5 mm of paper or tissue (cotton)
  4. 1 mm of the same silver disc
  5. again, a neodymium magnet

How can I estimate the attraction force between these two magnets in this system based on their dimensions and grade? I found several estimators online (this one, for example) but they all assume that there is nothing between the magnets.

Even being able to estimate "X mm in diameter and Y mm in thickness would yield at least Z grams of pull" would be great.

hazzey
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TZakrevskiy
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1 Answers1

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It is not changed unless the items between are ferromagnetic. Dennis #neomagman

user28760
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