Answer: ferromagnetic.
- A ferromagnetic
- B diamagnetic
- C paramagnetic
- D non-magnetic
Correct answer: A. ferromagnetic
Explanation: Ferromagnetic materials such as iron are strongly attracted by magnets.
Magnetic field lines form closed loops: outside the bar magnet they run from the N pole to the S pole; inside, they continue from S back to N, so the lines never start or end anywhere.
Concept context
Bar magnets, Earth's magnetism, and how different materials respond to an external magnetic field - diamagnetic, paramagnetic, and ferromagnetic behaviour.