Magnetic Materials & Curie Law
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?
Show answer and solution
Answer: (a)
- Feebly repelled: diamagnetic (A). Feebly attracted: paramagnetic (B).
- Strongly attracted: ferromagnetic (C). Unaffected: non-magnetic (D).
- Only statement (a) matches.
- So the answer is (a) B is of a paramagnetic material.