A) diamagnetic substances
B) paramagnetic substances
C) ferromagnetic substances
D) All of the above
Correct Answer: C
Solution :
Ferromagnetism materials exhibit a long range ordering phenomenon at the atomic level which causes the unpaired electron spins to line up parallel with each other in a region called domain. Within the domain, the magnetic field is intense, but in a bulk sample the material will usually be unmagnetised because the many domains will themselves be randomly oriented with respect to one another. Hence, domain formation is the necessary feature of ferromagnetic substance.
You need to login to perform this action.
You will be redirected in
3 sec
