Permanent and induced magnets

Cards (84)

  • What are the two types of magnets mentioned?
    Permanent and induced magnets
  • How do magnetic fields affect materials?
    They affect a few special magnetic materials
  • What are the main three magnetic elements?
    Iron, nickel, and cobalt
  • Why is steel considered magnetic?
    Because it contains iron
  • What happens when a magnetic material is placed near a magnet?
    It is attracted to that magnet
  • What is the nature of the magnetic force between a magnet and a magnetic material?
    It is always attractive
  • What do permanent magnets produce?
    Their own magnetic field
  • How do induced magnets behave?
    They produce a magnetic field only temporarily
  • What is the difference between permanent and induced magnets?
    Permanent magnets always produce a field, induced magnets do not
  • What happens to induced magnets when removed from a magnetic field?
    They lose their magnetism
  • What is the direction of induced magnetism?
    In the direction of the applied magnetic field
  • What happens to induced magnets when the magnetic field is removed?
    They stop producing a magnetic field
  • How does the material affect the speed of losing magnetism?
    It depends on the material's properties
  • What type of materials lose magnetism quickly?
    Soft magnetic materials
  • What type of materials lose magnetism slowly?
    Hard magnetic materials
  • What are permanent magnets made from?
    Magnetically hard materials
  • What are the uses of magnetic materials?
    • Used in motors and generators
    • Utilized in magnetic storage devices
    • Employed in magnetic resonance imaging (MRI)
    • Applied in various electronic devices
  • What is the effect of removing a magnetic field on induced magnets?
    They return to normal and stop producing
  • How quickly do soft magnetic materials lose magnetism?
    Very quickly
  • How quickly do hard magnetic materials lose magnetism?
    More slowly than soft materials
  • What happens to the magnetic field when a magnet is removed?
    Induced magnets return to normal
  • How does the material affect the speed of losing magnetism?
    It varies based on material properties
  • What is the relationship between induced poles and magnetic fields?
    Induced poles align with the magnetic field
  • What is the effect of a magnetic field on induced magnets?
    They produce a magnetic field while in it
  • What happens to induced magnets when the magnetic field is removed?
    They lose their magnetism
  • What is the effect of a magnetic field on permanent magnets?
    They always produce their own magnetic field
  • What is the nature of the magnetic force between a magnet and a magnetic material?
    It is always attractive
  • How does the material affect the speed of losing magnetism?
    It depends on the material's properties
  • What happens to induced magnets when removed from a magnetic field?
    They lose their magnetism
  • What is the direction of induced magnetism?
    In the direction of the applied magnetic field
  • What is the difference between permanent and induced magnets?
    Permanent magnets always produce a field, induced magnets do not
  • What happens to the magnetic field when a magnet is removed?
    Induced magnets return to normal
  • How does the material affect the speed of losing magnetism?
    It varies based on material properties
  • What is the relationship between induced poles and magnetic fields?
    Induced poles align with the magnetic field
  • What is the effect of a magnetic field on induced magnets?
    They produce a magnetic field while in it
  • What happens to induced magnets when the magnetic field is removed?
    They lose their magnetism
  • What is the effect of a magnetic field on permanent magnets?
    They always produce their own magnetic field
  • What is the nature of the magnetic force between a magnet and a magnetic material?
    It is always attractive
  • How does the material affect the speed of losing magnetism?
    It depends on the material's properties
  • What happens to induced magnets when removed from a magnetic field?
    They lose their magnetism