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
3691 times

More from MIT Department of Physics Technical Services Group

MIT Physics Demo -- Driven Mechanical Oscillator

MIT Physics Demo -- Driven Mechanic...

Added over 6 years ago | 00:01:07 | 35771 views

Confetti and the Van de Graaff Generator

Confetti and the Van de Graaff Gene...

Added over 5 years ago | 00:00:55 | 41180 views

MIT Physics Demo -- Microwave Interference

MIT Physics Demo -- Microwave Inter...

Added over 6 years ago | 00:02:11 | 26743 views

Physics Demo -- Magnetic Motor

Physics Demo -- Magnetic Motor

Added over 6 years ago | 00:01:29 | 67987 views

Spray Paint Oscillator

Spray Paint Oscillator

Added almost 6 years ago | 00:00:51 | 27008 views

Spring Paradox

Spring Paradox

Added almost 4 years ago | 00:01:01 | 17174 views