Answer: Paramagnetic.
- A Diamagnetic
- B Paramagnetic
- C Superconducting
- D Permanently magnetised
Correct answer: B. Paramagnetic
Explanation: Above the Curie temperature, thermal agitation disrupts the alignment of magnetic domains, and the material loses its ferromagnetic ordering, behaving as a simple paramagnetic substance.
Magnetic field of a bar magnet: field lines emerge from the north pole and re-enter at the south pole outside the magnet, forming continuous closed loops. Image: Geek3, CC BY-SA 3.0, via Wikimedia Commons.
Concept context
Bar magnets, Earth's magnetism, and how different materials respond to an external magnetic field - diamagnetic, paramagnetic, and ferromagnetic behaviour.