Household products that use magnetism

Household products that use magnetism

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Credit: CHARLES D. WINTERS/SCIENCE PHOTO LIBRARY

Caption: Magnetism in everyday life. Selection of household goods which use magnetism. The objects are (clock- wise from lower left): a speaker from a music system, a music tape, a ear-piece (white) from inside a telephone handset, a floppy disc for a computer and an assortment of magnets of various shapes. The speaker and ear-piece contain a plate connected to a magnet. Electrical signals make the magnet (and hence the plate) move, so producing sound. The tape and floppy disc are coated with a dispersed magnetic material which is magnetised by electrical signals so that they are recorded. The magnets can be used to pick up dropped pins or attach pieces of paper to refrigerator doors.

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Keywords: computer disk, everyday, household items, magnet, magnetic, magnetic speaker, magnetic tape, magnetism, physics, tape, telephone

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