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 8 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 8 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 8 years by Anonymous

thanks

Posted almost 8 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 6 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 6 years ago

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


Viewed
78100 times

More from MIT Department of Physics Technical Services Group

Physics Demo -- Jumping Ring

Physics Demo -- Jumping Ring

Added almost 9 years ago | 00:01:40 | 58958 views

Coupled Air Carts

Coupled Air Carts

Added over 7 years ago | 00:07:38 | 53635 views

Relative Motion Gun

Relative Motion Gun

Added over 7 years ago | 00:01:07 | 57610 views

Waves on a Chain

Waves on a Chain

Added over 7 years ago | 00:01:26 | 45901 views

MIT Physics Demo -- Telegraph Transmitter

MIT Physics Demo -- Telegraph Trans...

Added almost 9 years ago | 00:00:36 | 54652 views

Laser Diffraction and Interference

Laser Diffraction and Interference

Added almost 8 years ago | 00:02:25 | 41351 views