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प्रश्न
Write the type of magnetism observed when the magnetic moments are aligned in parallel and anti-parallel directions in unequal numbers.
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उत्तर
Ferromagnetism is observed when the magnetic moments are aligned in parallel and anti-parallel directions in unequal numbers.
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संबंधित प्रश्न
What is ferromagnetism?
Iron (z=26) is highly ferromagnetic. Explain.
Give reason for the following :
Sulphur in vapour state shows paramagnetic behaviour.
What happens to the domains in a ferromagnetic material in the presence of external magnetic field?
Which of the following arrangements shows schematic alignment of magnetic moments of antiferromagnetic substances?
A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field becuase ______.
Which of the following is not a ferroelectric compound?
Some of the polar crystals when heated produces small electrical current. This phenomenon is called ______.
Match items of List - I with those of List - II:
| List - I | List - II | ||
| (Property) | (Example) | ||
| (A) | Diamagnetism | (i) | MnO |
| (B) | Ferrimagnetism | (ii) | O2 |
| (C) | Paramagnetism | (iii) | NaCl |
| (D) | Antiferromagnetism | (iv) | Fe3O4 |
Choose the most appropriate answer from the options given below:
Give a reason for the following:
Cu+2 salts are paramagnetic, while Cu+ salts are diamagnetic.
