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soft iron

noun
    1. iron that has a low carbon content and is easily magnetized and demagnetized with a small hysteresis loss
    2. (as modifier)a soft-iron core
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for soft iron

Historical Examples of soft iron

  • The effect can be very greatly increased by providing the solenoid with a soft-iron core.

    The New Gresham Encyclopedia

    Various

  • Soft-iron electro-magnets, after being once magnetized, remain slightly magnetic.

  • Magnets retain their strength best when provided with soft-iron "keepers," as in Fig. 171.

    Physics

    Willis Eugene Tower

  • A piece of brass wire, O, is soldered to the diaphragm disk B and the soft-iron armature H, to connect them solidly.

  • Soft-iron magnets having high permeability quickly lose their magnetism.

    Physics

    Willis Eugene Tower