Barkhausen noise

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• Barkhausen effect — The Barkhausen effect is a name given to the noise in the magnetic output of a ferromagnet when the magnetizing force applied to it is changed. Discovered by German physicist Heinrich Barkhausen in 1919, it is caused by rapid changes of size of… …   Wikipedia

• Coil Noise — is a phenomenon in electronics which produces both undesirable audible sound, and electronic noise. Contents 1 Description 2 Devices Effected By Coil Noise 3 Reducing Coil Noise 4 …   Wikipedia

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