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audio cassettes

joshuam168
in Physics

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How do they store information on audio cassettes? How is it read and translated into sound?

How do they store information on audio cassettes? How is it read and translated into sound?

 

An sound pick up, phonograph needle, or microphone turns sound into fluctuating electricity, this is turned into a fluctuating magnetic field. This fluctuating magnetic field makes patterns of magnetism in the iron impregnated tape. When the tape is replayed a magnetic field picks up these fluctuations and converts them back into sound.

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