====== Barkhausen Effect ======
{{tag>unseen unlocated}}
{{Barkhausen.jpg?400|}}
// //
===== Description =====
Demonstrates existence of magnetic domains.
===== Purpose =====
To demonstrate the Barkhausen effect as evidence for the existence of magnetic domains.
===== Apparatus =====
Transformer in Cu shielding, Strong magnet, amplifier, speaker
===== Setup =====
The high impedance winding in a small transformer is connected through shielded cable to a high gain amplifier and speaker. For low level background noise the transformer is surrounded by a copper case except for a small window left in this shielding. With high gain in the amplifier a magnet moved past the window produces noticeable clicking in the speakers. Updated on: 06/12/13
===== Notes =====
// Demo room information //
| **Location** | ---- |
| **Maker** | Unknown |
| **Current State** | Working |