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Electrical Technology, Volume 1 by S. P. Bali

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11

Magnetic Materials

OBJECTIVES

In this chapter you will learn about:

  • The orientation of molecular magnets and their contribution to the different properties of magnetic materials
  • Classification of magnetic materials
  • Ferromagnetic, diamagnetic, and paramagnetic materials
  • Soft and hard magnetic materials
  • Properties of ferrites
  • Magnetic materials with rectangular hysteresis loops
  • Permanent magnet materials and their properties
  • Non-magnetic alloys used as magnetic insulators
  • Typical applications of magnetic materials in industry
  • Terms associated with magnetic fields and circuits
Image

(a) Domains in an unmagnetized specimen

(b) Magnetization curve ...

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