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
40355 times

More from MIT Department of Physics Technical Services Group

MIT Physics Demo -- Driven Mechanical Oscillator

MIT Physics Demo -- Driven Mechanic...

Added over 6 years ago | 00:01:07 | 35789 views

Bell Labs Wave Machine: Superposition

Bell Labs Wave Machine: Superposition

Added over 3 years ago | 00:00:34 | 11115 views

MIT Physics Demo -- Galvanometer Principle

MIT Physics Demo -- Galvanometer Pr...

Added 6 years ago | 00:00:47 | 48559 views

Potential Energy to Kinetic Energy

Potential Energy to Kinetic Energy

Added over 5 years ago | 00:01:11 | 30224 views

Simulation of Magnetic Domains

Simulation of Magnetic Domains

Added over 2 years ago | 00:01:54 | 4091 views

Field of a Sphere and an Infinite Plane

Field of a Sphere and an Infinite P...

Added almost 3 years ago | 00:02:23 | 7287 views