Explain, briefly, what a hysteresis cycle is

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SUMMARY

A hysteresis cycle, specifically in the context of ferromagnetic materials, describes the phenomenon where magnetization does not return to zero after the removal of an external magnetic field. Instead, a reverse magnetic field is required to demagnetize the material. When subjected to an alternating magnetic field, the magnetization follows a loop known as a hysteresis loop. This behavior is attributed to the presence of magnetic domains within the material, which causes the magnetization curve to lack retraceability, defining the property of hysteresis.

PREREQUISITES
  • Understanding of ferromagnetic materials
  • Familiarity with magnetic domains
  • Basic knowledge of magnetization processes
  • Concept of alternating magnetic fields
NEXT STEPS
  • Research the properties of ferromagnetic materials
  • Study the concept of magnetic domains in detail
  • Learn about the mathematical representation of hysteresis loops
  • Explore applications of hysteresis in electrical engineering
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Students in physics, electrical engineers, and anyone interested in the principles of magnetism and its applications in technology.

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Homework Statement



explain, briefly, what a hysteresis cycle is [2 marks]

The Attempt at a Solution



I don't think the answer is to draw a graph because that is the next question. The subject is electricity and magnetism but the above question does not refer specifically to electricity and magnetism. I have looked things up in books and the internet, but none of them will define the hysteresis cycle briefly, they all write paragraphs
 
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When a ferromagnetic material is magnetized in one direction, it will not relax back to zero magnetization when the imposed magnetizing field is removed. It must be driven back to zero by a field in the opposite direction. If an alternating magnetic field is applied to the material, its magnetization will trace out a loop called a hysteresis loop. The lack of re-traceability of the magnetization curve is the property called hysteresis and it is related to the existence of magnetic domains in the material.
 

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