All magnetic materials lose their magnetic properties when
All magnetic materials lose their magnetic properties when Correct Answer Heated to high temperature
- All the magnetic materials lose their magnetic properties when they are Heated.
- For every material, there is a temperature specific to it known as its Curie temperature above which the magnetic materials lose their magnetic properties.
- The Curie Temperature is a temperature at which certain magnetic
materials undergo a sharp change in their magnetic properties. - The Curie Temperature is named after the French physicist Pierre Curie who discovered some laws of magnetism in 1895.
| Materials | Specifications |
| Iron | Used for electromagnets as well as in a permanent magnet |
| Iron oxides | Haematite, magnetite and ferric oxide |
| Nickel | Magnetic to moderate temperatures |
| Cobalt | Retains magnetism at high temperatures |
| Alloys | Certain alloys of iron, nickel or cobalt |
| Rare earth | Samarium and Neodymium magnets |
মোঃ আরিফুল ইসলাম
Feb 20, 2025