Magnetostriction

ahd-5
  • noun. Deformation of a material, especially a ferromagnetic material, exposed to a magnetic field. Rapidly alternating magnetostriction causes the iron cores of transformers to hum or buzz.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. the change of length or shape of a ferromagnetic material when it is magnetized
  • Word Usage
    "He also worked with Lord Kelvin to develop the absolute scale of temperature, made observations on magnetostriction, and found the relationship between the flow of current through a resistance and the heat dissipated, now called Joule's law."
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