Massachusetts Institute of Technology
Sign in

Physics Demo -- Magnetic Motor

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 (5)

wow

Posted over 9 years 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 over 9 years 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 9 years by Anonymous

thanks

Posted almost 9 years by Anonymous

That is sweet! 200 years from now we will have figured out how to fly using the earth’s own gravity as a motor!

Posted over 7 years by Bobbee

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 7 years ago

Created
March 27, 2008 11:53
Category
Tags
License
All Rights Reserved (What is this?)
Additional Files


Viewed
80592 times

More from MIT Department of Physics Technical Services Group

MIT Physics Demo -- Back "emf" in a Large Solenoid

MIT Physics Demo -- Back "emf" in a...

Added almost 10 years ago | 00:00:23 | 72027 views

MIT Physics Demo -- Exploding Wire

MIT Physics Demo -- Exploding Wire

Added over 9 years ago | 00:02:00 | 67953 views

Relative Motion Gun

Relative Motion Gun

Added over 8 years ago | 00:01:07 | 59702 views

Cloud Chamber

Cloud Chamber

Added over 8 years ago | 00:02:36 | 96228 views

MIT Physics Demo -- Pendulum and Magnet

MIT Physics Demo -- Pendulum and Ma...

Added almost 10 years ago | 00:01:11 | 49842 views

MIT Physics Demo -- No-Win Tug of War

MIT Physics Demo -- No-Win Tug of War

Added over 9 years ago | 00:00:33 | 46343 views