Massachusetts Institute of Technology
Sign in | Create Account

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. If you don’t have an account yet, sign up now!

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


Viewed
40322 times

More from MIT Department of Physics Technical Services Group

Balloons in Liquid Nitrogen

Balloons in Liquid Nitrogen

Added over 5 years ago | 00:01:18 | 44842 views

Adjustable Capacitor with Dielectric

Adjustable Capacitor with Dielectric

Added over 5 years ago | 00:02:05 | 34960 views

Collapsing Solenoid

Collapsing Solenoid

Added 2 years ago | 00:00:52 | 4363 views

Waves on a Chain

Waves on a Chain

Added 5 years ago | 00:01:26 | 42107 views

Physics Demo -- Jumping Ring

Physics Demo -- Jumping Ring

Added over 6 years ago | 00:01:40 | 46348 views

Ring Falling in a Magnetic Field

Ring Falling in a Magnetic Field

Added almost 3 years ago | 00:03:27 | 9885 views