UBC PHAS Demonstration Room Catalog

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====== Barkhausen Effect ======

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<WRAP box right>
{{Barkhausen.jpg?400|}}

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</WRAP>

===== 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 =====



<WRAP group>
<WRAP half column>

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<WRAP half column>

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<WRAP box>
<WRAP centeralign> // Demo room information // 
</WRAP>
<WRAP tablewidth 100%>
| **Location** | ---- |
| **Maker** | Unknown |
| **Current State** | Working |
</WRAP>
</WRAP>

UBC PHAS Demonstration Room Catalog

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