What is the difference between paramagnetic and ferromagnetic materials?

Property Paramagnetic Materials Ferromagnetic Materials
Magnetic Moment Have weak, temporary magnetic moments. Have strong, permanent magnetic moments.
Response to Magnetic Field Weakly attracted to an external magnetic field. Strongly attracted to an external magnetic field.
Alignment of Magnetic Dipoles Magnetic dipoles align with the external field, but only weakly. Magnetic dipoles align strongly with the external field.
Magnetization Magnetization is small and disappears once the external field is removed. Magnetization is large and can persist even after the external field is removed.
Examples Aluminum, platinum, oxygen. Iron, cobalt, nickel.
Curie Temperature Do not have a Curie temperature (they do not become magnetized permanently). Have a Curie temperature above which they lose their permanent magnetism.
Magnetic Behavior at High Temperature Remain paramagnetic at all temperatures. Lose their magnetism above their Curie temperature.

Related Questions:

  1. Can two magnetic field lines intersect each other? Justify your answer.
  2. A freely suspended magnet always points along the north-south direction. Why?
  3. What is the neutral zone or field-free region of the magnetic field?
  4. Is there any material which does not have any magnetic behavior? Justify your answer.
  5. A proton is also a charged particle and spins like an electron. Why is its effect neglected in the study of magnetism?
  6. What is the geomagnetic reversal phenomenon? Explain.
  7. Why does the Earth spin about its geographical axis instead of its magnetic axis? Explain.
  8. Why are the Earth’s geographical and magnetic axes not coincident? Explain.
  9. Q7. Look at the figure of screw gauge, let a small steel ball is place between its thimble and anvil then:
  12. SEPARATION TECHNIQUES
  13. Define the following branches of physics:
  14. Define the terms theory and law. Also, give two examples of each.
  15. Define Hypothesis?
  16. What is the difference between classical mechanics and quantum mechanics?
  17. What determines the validity of a theory?
  18. Which part of the study is not handled by the classical study of physics?
  19. Discuss the importance of physics in our daily life.
  20. Briefly discuss the importance of physics in other disciplines of science.