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[Phys-l] Quadropole magnets 3X cross posted



Torsion balance magnetometer


FREE BONUS: Two Quadrapole Magnets -- These very special magnets each have four magnetic poles, not just two like other magnets! Use the magnetometer to demonstrate that the field from a quadrapole magnet falls as the fourth power of the distance.

bc, just ordered one.

p.s.

http://www.scifair.org/Kits_magnetometerSAS.html