Magnetic reversal

What is Magnetic reversal?

Magnetic reversal definition and meaning on Dictionary terms:
noun
a ribbon of material, usually with a plastic base, coated on one side (single tape) or both sides (double tape) with a substance containing iron oxide, to make it sensitive to impulses from an electromagnet: used to record sound, images, data, etc.

 

reference: https://www.dictionary.com/browse/magnetic-reversal

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