50mm od x 25mm id x 10mm thick Rare Earth Donut Magnet Neodymium Ring Magnets N35 Super Strong Craft Magnets

Disse store ringene er veldig sterke og gode for en rekke bruksområder og eksperimenter. De må håndteres med forsiktighet da de vil klemme fingrene og sannsynligvis knekke hvis de får lov til å smelle sammen.

• 50mm outer diameter x 25mm inner diameter x 10mm thick
• Each magnet’s north and south pole are on opposite circular faces
• Utmerket motstand mot avmagnetisering
• Belagt med tre lag nikkel, kobber og nikkel for å redusere korrosjon og gi en jevn og ren finish

These versatile high-performance ringmagneter, with north and south poles on opposing circular faces, have many uses. They are used in many everyday appliances such as vacuum cleaners plus motors, generatorer, rotor shafts and more. They can even be used to demonstrate intriguing ‘eddy currents’ using a copper pipe slightly thinner than the magnets inner diameter. Simply slide the ring over the pipe and let it slide down its length and watch it slowly descend as the eddy currents produced create a damping effect. Compare this with an unmagnetised ring of the same dimension by repeating and watch as the unmagnetised ring slides down the pipe in an instant. A great way to bring magnets to life in the classroom.