Massachusetts Institute of Technology
Sign in | Create Account

Barkhausen Effect

A soft iron core is placed inside a solenoid having several hundred turns of fine wire. The coil winding is connected to a loudspeaker. Audible results of the Barkhausen Effect are produced by slowly moving a permanent magnet toward the solenoid core. A loud rasping sound will be heard caused by the domains aligning themselves. Successive passes produce no sound until the polarity of the magnet is changed.

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
May 08, 2012 12:59
Category
Tags
License
Creative Commons Attribution-NonCommercial (What is this?)
Additional Files


Viewed
3952 times

More from MIT Department of Physics Technical Services Group

Bell Labs Wave Machine: Standing Waves

Bell Labs Wave Machine: Standing Waves

Added over 3 years ago | 00:01:16 | 14845 views

Ring Falling in a Magnetic Field

Ring Falling in a Magnetic Field

Added 3 years ago | 00:03:27 | 10150 views

MIT Physics Demo -- Pendulum and Magnet

MIT Physics Demo -- Pendulum and Ma...

Added over 6 years ago | 00:01:11 | 40441 views

Lenz's Law with Copper Pipe

Lenz's Law with Copper Pipe

Added over 2 years ago | 00:01:38 | 6240 views

The Wimshurst Machine

The Wimshurst Machine

Added over 4 years ago | 00:02:33 | 40586 views

MIT Physics Demo -- Exploding Wire

MIT Physics Demo -- Exploding Wire

Added over 6 years ago | 00:02:00 | 55434 views