There are four light-weight-rod samples $A, B, C$, $D$ separately suspended by threads. A bar magnet is…
There are four light-weight-rod samples $A, B, C$, $D$ separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted
(i) $A$ is feebly repelled
(ii) $B$ is feebly attracted
(iii) $C$ is strongly attracted
(iv) $D$ remains unaffected
Which one of the following is true?
$C$ is of a diamagnetic material
$D$ is of a ferromagnetic material
$A$ is of a non-magnetic material
$B$ is of a paramagnetic material
Solution
Paramagnetic materials will be feebly attract, dimagnetic material will be feebly repelled and Ferromagnetic material will be strongly attracted.