Learn about MIT TechTV and check out our resource page for media makers at MIT.

MIT TechTV is an initiative of MIT Engineering

Physics Demo -- Magnetic Motor

You need Adobe Flash Player to watch videos on this site.

A toroid with three different wire windings is connected to 220 VAC 3-phase voltage. The voltage phase of each of the three windings lags 120 degrees behind the next, creating a changing induced magnetic field. The changing field causes metal objects to rotate when placed inside.

Motors using this principle are very common. In fact, power lines are often seen in sets of three because they are carrying three phases. For more information on 3-phase voltage, go here

Comments (4)

wow

Posted 1 year by Anonymous User

Would it be possible to get a schematic of the toroid windings and specs / current draw of the egg of Columbus? I am a member of the Tesla Mail List and we have been trying to find info like this a long time. There is no need to do Tesla’s 2 phase setup. We like your three phase demo.

Thanks Much,
Jim Mora
Wavetuner@gmail.com

Posted 1 year by Anonymous

i found this cliping very nice and informative. thanks for the same. if possible show cliping, How linear drives are working on magnafield, which is widely used for laser beam head movement.

Posted 10 months by Anonymous

thanks

Posted 8 months by Anonymous

You need to log in, in order to post comments. If you don’t have an account yet, sign up now!

Created
March 27, 2008 11:53
Category
Tags
License
No license (All rights reserved) (What is this?)
Formats
Flash Video (flv), AVI
Additional Files


Viewed
3281 times

More from MIT Department of Physics Technical Services Group

Moving Sand Cart Over a Rotating Surface

Moving Sand Cart Over a Rotating Su...

Added 3 months ago | 00:01:14 | 1708 views

MIT Physics Demo -- Dipole Antenna

MIT Physics Demo -- Dipole Antenna

Added 1 year ago | 00:00:57 | 2077 views

MIT Physics Demo -- Centrifugal versus Centripetal Motion

MIT Physics Demo -- Centrifugal ver...

Added 1 year ago | 00:01:19 | 2367 views

MIT Physics Demo -- Inductor Radio

MIT Physics Demo -- Inductor Radio

Added 1 year ago | 00:01:02 | 1632 views

MIT Physics Demo -- Forces on a Current-Carrying Wire

MIT Physics Demo -- Forces on a Cur...

Added 1 year ago | 00:00:50 | 1432 views

Breaking Glass with Sound

Breaking Glass with Sound

Added 6 months ago | 00:02:34 | 5026 views