Electromagnet
Videos
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of copper wire wound into a coil. A current through the wire creates
Homemade electromagnet with 9V battery
Closeup of a large Henry electromagnet
Industrial electromagnet lifting scrap iron, 1914
Laboratory electromagnet; produces 2 T field with 20 A current
Bitter electromagnet
Videos
A Bitter electromagnet or Bitter solenoid is a type of electromagnet invented in 1933 by American physicist Francis Bitter used in scientific research to create extremely strong magnetic fields. Bitte
Diamagnetic forces acting upon the water within its body levitating a live frog inside the 3.2 cm vertical bore of a Bitter solenoid at the Nijmegen High Field Magnet Laboratory, Nijmegen, Netherlands. The magnetic field was about 16 teslas. Video is available.
Plate from a 16 T Bitter magnet, 40 cm diameter, made of copper. In operation it carries a current of 20 kiloamperes
The most powerful electromagnet in the world, the 45 T hybrid Bitter-superconducting magnet at the US National High Magnetic Field Laboratory, Tallahassee, Florida, USA