The susceptibility of a magnetic material is . Identify the type of magnetic material and state its two properties.
Solution
The susceptibility is small and negative (), so the material is diamagnetic.
Two characteristic properties:
(i) It is feebly repelled by a magnet and tends to move from a stronger field to a weaker field.
(ii) When placed in a magnetic field it is weakly magnetised in a direction opposite to the applied field, so the field lines inside are reduced (relative permeability slightly less than 1).
Two characteristic properties:
(i) It is feebly repelled by a magnet and tends to move from a stronger field to a weaker field.
(ii) When placed in a magnetic field it is weakly magnetised in a direction opposite to the applied field, so the field lines inside are reduced (relative permeability slightly less than 1).
CBSE Class 12 Board · 2012 · Subjective