Ads
related to: extremely strong magnets usa discount code 20%
Search results
Results from the WOW.Com Content Network
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
However, an eddy current brake cannot provide a "holding" torque and so may be used in combination with mechanical brakes, for example, on overhead cranes. Another application is on some roller coasters, where heavy copper plates extending from the car are moved between pairs of very strong permanent magnets.
These so-called ceramic magnets are cheap, and are widely used in household products such as refrigerator magnets. The maximum magnetic field B is about 0.35 tesla and the magnetic field strength H is about 30–160 kiloampere turns per meter (400–2000 oersteds ). [ 33 ]
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Please wait a moment and reload the page learn more. Try again. Copyright © 2022 Yahoo. All rights reserved.
The MK-2 generator is particularly interesting for the production of intense currents, up to 10 8 A (100 MA), as well as a very high energy magnetic field, as up to 20% of the explosive energy can be converted to magnetic energy, and the field strength can attain 2 × 10 6 gauss (200 T).
Ads
related to: extremely strong magnets usa discount code 20%