Magnetism and Matter
154476
Which one of the following statement is true?
1 Paramagnetism ceases to exist below a certain temperature
2 Ferromagnetism ceases to exist below a certain temperature
3 Onset of paramagnetism requires the presence of paramagnet magnetic dipoles
4 Ferromagnetism ceases to exist above a certain temperature
Explanation:
D Above curie temperature the ferromagnetism converts into paramagnetism.