Answer: north–south direction.
- A north–south direction
- B east–west direction
- C up–down direction
- D a random direction
Correct answer: A. north–south direction
Explanation: A bar magnet aligns itself along the Earth’s magnetic field, i.e. north–south.
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.