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!

MIT Department of Physics Technical Services Group

MIT Department of Physics Technical Services Group

Category: Science | Updated over 1 year ago

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


Viewed
40646 times

More from MIT Department of Physics Technical Services Group

Paramagnetism Of Liquid Oxygen

Paramagnetism Of Liquid Oxygen

Added almost 3 years ago | 00:02:22 | 8986 views

Charge and Electric Field of a Hollow Conductor

Charge and Electric Field of a Holl...

Added 3 years ago | 00:01:54 | 7976 views

Soap Film Oscillation

Soap Film Oscillation

Added over 5 years ago | 00:04:27 | 45377 views

Adjustable Capacitor with Dielectric

Adjustable Capacitor with Dielectric

Added over 5 years ago | 00:02:05 | 35209 views

Spring Paradox

Spring Paradox

Added almost 4 years ago | 00:01:01 | 17394 views

MIT Physics Demo -- No-Win Tug of War

MIT Physics Demo -- No-Win Tug of War

Added 6 years ago | 00:00:34 | 36495 views