Massachusetts Institute of Technology
Sign in

MIT Physics Demo -- Levitating Magnet

A magnet with a very strong magnetic field is held in place on an aluminum disk. The disk is attached to a motor powered by variable AC current. When the disk rotates, the magnet will levitate above it due to eddy currents generated in the disk. With the disk spinning, these eddy currents form to oppose the magnetic field of the magnet, making it levitate. When the motor is turned off, the magnet falls back to the disk.

Comments (0)

It looks like no one has posted a comment yet. You can be the first!

You need to log in, in order to post comments.

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 6 years ago

Created
June 25, 2008 16:28
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
45214 times

More from MIT Department of Physics Technical Services Group

Laser Diffraction and Interference

Laser Diffraction and Interference

Added 8 years ago | 00:02:25 | 42253 views

Strobe of a Falling Ball

Strobe of a Falling Ball

Added over 8 years ago | 00:00:41 | 49246 views

Potential Energy to Kinetic Energy

Potential Energy to Kinetic Energy

Added over 8 years ago | 00:01:11 | 34779 views

MIT Physics Demo -- No-Win Tug of War

MIT Physics Demo -- No-Win Tug of War

Added over 8 years ago | 00:00:33 | 43908 views

Physics Demo -- Jumping Ring

Physics Demo -- Jumping Ring

Added 9 years ago | 00:01:40 | 60362 views

Two Dimensional Collisions

Two Dimensional Collisions

Added almost 8 years ago | 00:01:19 | 49225 views