Answer: Inversely proportional to the absolute temperature.
- A Directly proportional to the absolute temperature
- B Independent of temperature
- C Inversely proportional to the square of the temperature
- D Inversely proportional to the absolute temperature
Correct answer: D. Inversely proportional to the absolute temperature
Explanation: Curie's law gives χ = C/T, where C is the Curie constant, so paramagnetic susceptibility decreases as temperature rises.
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.