Barkhausen effect demonstration

[prodigytechus]

Dear Sir, between 3:12 and 3:20 when the procedure was repeated with the same pole, why wasn't the hiss generated ?

[simchas]

@prodigytechus

Because in the second sample I use steel instead of soft Iron and in steel the magnetic domains stay's in their last position. In iron the magnetic domains rotate more freely under magnetic field and that’s why you here the noise again and again.

[danielsanichiban]

@prodigytechus .. known as hysteresis effect

[temp4511]

In 1:49 and 1:56 the noise starts before he starts moving by the magnet. Maybe it is a fake.

[alexvidmaster]

@temp4511 MAYBE YOU ARE GAY.... are u a scientific? why don't u put ur vid of doing the same experiment.

[sandaura]

THank you for the demonstration. Please take the time to view my videos. We are

heaing resonance in our home and on our property that we believe is rf/microwave pulsing. Google Sandaura

and you will find me.

[carellecarelle]

Hi, I'm very intrested by your video. In fact I would like to do the same experience and I have a few questions :

- What kind of self do you use ?

- Do you use a preamp ?

- Do you use a Band-pass filter ?

Thanks for your help.