The magnetic susceptibility is negative for:
diamagnetic material only
paramagnetic material only
ferromagnetic material only
Paramagnetic and ferromagnetic materials
As we discussed in
Current loop as a magnetic dipole -
A current carrying circular coil behaves as a bar magnet whose magnetic monent is M
- wherein
magnetic susceptibility is negative for diamagnetic meterial only
Option 1)
diamagnetic material only
This option is correct
Option 2)
paramagnetic material only
This option is incorrect
Option 3)
ferromagnetic material only
This option is incorrect
Option 4)
Paramagnetic and ferromagnetic materials
This option is incorrect