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Physics, 18.03.2021 01:50 Yellowjacket3166

Tape recorders contain strips of thin plastic tape, which are covered in a layer of very fine iron dust. The iron dust reacts to a changing magnetic field and slightly rearranges itself on the tape, thereby recording the pattern generated by the changing magnetic field.

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Tape recorders contain strips of thin plastic tape, which are covered in a layer of very fine iron d...
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