5G20.10 - Barkhausen Effect

Barkhausen Effect

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PIRA Classification: 5G20.10

Description: A metal core (iron, nickel, or copper wire ) is inserted into a coil of wire connected to the lecture hall sound system. When a strong magnet is brought near, crackling can be heard. This sound is that of the domains flipping (with the nickel or iron). Nothing is heard with the copper or empty coil.

Special Instructions: None

Condition: Good

Setup time: 2 minutes

Safety Issues: None