Answer: Small and negative.
- A Large and positive
- B Small and positive
- C Small and negative
- D Zero
Correct answer: C. Small and negative
Explanation: Diamagnetic materials: small negative susceptibility. They are weakly repelled by magnets (e.g., gold, water, bismuth).
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.