Answer: magnetic equator.
- A magnetic equator
- B magnetic poles
- C geographic north pole
- D geographic south pole
Correct answer: A. magnetic equator
Explanation: At the magnetic equator the field is horizontal, so the dip is 0°.
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.