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!

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


Viewed
4766 times

More from MIT Department of Physics Technical Services Group

Simulation of Magnetic Domains

Simulation of Magnetic Domains

Added 3 years ago | 00:01:54 | 5101 views

Pulling a Cloth From Under a Beaker

Pulling a Cloth From Under a Beaker

Added over 4 years ago | 00:00:50 | 16770 views

Strobe of a Falling Ball

Strobe of a Falling Ball

Added almost 7 years ago | 00:00:41 | 40949 views

Center of Mass Trajectory

Center of Mass Trajectory

Added 6 years ago | 00:01:30 | 49911 views

Speed of a Bullet

Speed of a Bullet

Added almost 7 years ago | 00:00:22 | 44972 views

MIT Physics Demo -- Magnetic Deflection of a TV Image

MIT Physics Demo -- Magnetic Deflec...

Added almost 7 years ago | 00:01:35 | 55320 views