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acrylic prints coil acrylic prints wire acrylic prints electromagnet acrylic prints core acrylic prints solenoid acrylic prints saw blade acrylic prints demagnetizing acrylic prints physics acrylic prints education acrylic prints electricity acrylic prints magnetism acrylic prints illustration acrylic prints diagram acrylic prints ac acrylic prints alternating current acrylic prints

photographs coil photos wire photos electromagnet photos core photos solenoid photos saw blade photos demagnetizing photos physics photos education photos electricity photos magnetism photos illustration photos diagram photos ac photos alternating current photos

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Demagnetizing a metal object with a solenoid. Illustration of an alternating current (AC) power source being used to demagnetize a metal object, in this case a saw blade (lower right). A direct current (DC) power source will produce a strong magnetic field in the solenoid (coils of copper wiring), which induces magnetism in certain metal objects (such as iron) placed inside it. Whether the induced magnetism is permanent or temporary depends on the metal used. An alternating current (AC) power supply switches rapidly in polarity and randomises the magnetic polarity (shown with small magnets in saw blade), removing any existing magnetism from the metal object.

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