The most common use of magnets and magnetism in in electric motors and generators.
The basic principle of a motor is that if a wire carrying a current is in a magnet field there will be a force on that wire. That wire will move if it can.
The basic principle of a generator is that if a wire is moving in a magnetic field then a current is induced in that wire.
Super magnets, such as neodymium magnets, are used in various applications like electronics, medical devices, and industrial machinery. They are commonly found in headphones, hard drives, MRI machines, and magnetic separators due to their strong magnetic properties and small size.
Special Purpose Machinery
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electronic devices that get too close to magnets, can stop working properly.
Permanent magnets are used in food processing to remove metal fragments resulting from the manufacturing process. Magnets are also used in recycling centers to separate iron. A magnetic resonance imaging machine uses a magnet.
Magnets can be hazardous if ingested, as they can cause internal damage if attracted to each other through tissues. They can also interfere with certain medical devices like pacemakers or affect electronic devices. Otherwise, magnets are generally safe to handle and use.
NAICS 333999 applies to All Other General Purpose Machinery Manufacturing.
farm machinery, mechanical devices, including tractors and implements, used in farming to save labour.
It is asking how the devices are used. What is their purpose?
This industry includes special purpose machinery such as robotics machinery, which alone encompassed a growing trend in manufacturing
they import devices,machinery,foods,cellphones
T. B. Montgomery has written: 'Design of magnets and electromagnets' -- subject(s): Magnetism, Electromagnets, Magnets, Magnetic devices