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 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.