Answer: Diamagnetic.
- A Diamagnetic
- B Paramagnetic
- C Ferromagnetic
- D Non-magnetic
Correct answer: A. Diamagnetic
Explanation: Diamagnetic materials develop a weak magnetisation opposite to the applied field, causing them to be feebly repelled 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.