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Ring magnets in the image are repelling each other. If top face of blue ring magnet is north pole then the poles of the bottom face of red magnet and top face
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100mm O.D x 50mm I.D x 12mm thick Y30BH Ferrite Ring Magnet - 9kg Pull
Ferrite Ring Magnet Ceramic Ring Ø 140.0 mm x 63.0 mm x 17.0 mm mm Y30 - holds 19 kg | Magnosphere Shop
20pcs N50 12x3mm Countersink Ring Magnets 4mm Hole
How do the field lines of a 'ring magnet' look like? Can you explain this with a diagram? - Quora
Multipole Ring Magnets for Sensors - Dexter Magnetic Technologies
Buy Rare Earth Ring Magnets Online | Magnet.com.au – Magnet UK
102mm O.D x 51mm I.D x 15mm thick Y30BH Ferrite Ring Magnet - 9kg Pull
Ferrite Ring Magnet OD 40mm ID 21mm x 9mm Deep OM0879AM | Rich Electronics
5,842 Ring Magnet Images, Stock Photos & Vectors | Shutterstock
CMS Magnetics® Grade N52 Super Strong Neodymium Magnet Ring OD1.26" x ID 1/2" x 3/8" - Rare Earth Magnet Ring for Classroom, Science Project and DIY Applications - One Pack : Amazon.co.uk:
China Blue Red North Pole South Pole Ring Magnet For Sales Manufacturer and Pricelist | Lianying Enterprise