Answer: A·m².
- A A·m²
- B tesla
- C weber
- D henry
Correct answer: A. A·m²
Explanation: Magnetic dipole moment has units of ampere·metre² (A·m²).
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.