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
3270 times

More from MIT Department of Physics Technical Services Group

MIT Physics Demo -- Low Friction Atwood Machine

MIT Physics Demo -- Low Friction At...

Added over 5 years ago | 00:00:46 | 45890 views

MIT Physics Demo -- Magnetic Deflection of a TV Image

MIT Physics Demo -- Magnetic Deflec...

Added almost 6 years ago | 00:01:35 | 52711 views

Orbital Motion

Orbital Motion

Added almost 5 years ago | 00:03:00 | 41298 views

Waves on a Chain

Waves on a Chain

Added almost 5 years ago | 00:01:26 | 41708 views

Sound Wave Interference

Sound Wave Interference

Added over 2 years ago | 00:02:14 | 9129 views

Double Cone and Plane

Double Cone and Plane

Added over 3 years ago | 00:01:11 | 18910 views