To demonstrate eddy currents, there's no need to certainly be a scientist or an engineer. All you need is a solid neodymium magnet as well as a pipe created from a conducting material like copper. It above shows a 23mm diameter x 20mm thick neodymium magnet being dropped by having a large, thick copper pipe. We presume a way of showing eddy currents for doing things will be to use a thinner copper pipe and also a neodymium ferrite magnets ring magnet, just as from the image towards the top of the page. It is vital that the diameter in the copper pipe and also the inner diameter with the ring magnet are güçlü mıknatıs incredibly similar, so there may be ample space between to slide the ring in the pipe. Try this on your own with his 25mm diameter neodymium ring magnet which has a 16mm inner diameter, suitable for use with 15mm copper tube. When you really need to amaze friends and family or family, you possibly can perform the demonstration with an unmagnetised neodymium ring magnet and watch it fall straight away to the bottom. Should you then sneakily exchange the two rings and repeat with the magnet your audience are going to be captivated since the magnet descends slowly down the pipe!