Answer: weakly repelled.
- A weakly repelled
- B strongly attracted
- C strongly magnetised
- D completely unaffected
Correct answer: A. weakly repelled
Explanation: Diamagnetic substances are weakly repelled by a magnetic field.
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.