Magnetic Properties of Matter: Practice Problem & Solution
22. 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? (2011 Pre)
Solution Explained:
To solve this problem, we apply the core principles of Magnetic Properties of Matter. Understanding the underlying formula is key to arriving at the correct answer below:
Diamagnetic materials (A) are feebly repelled. Paramagnetic materials (B) are feebly attracted. Ferromagnetic materials (C) are strongly attracted. Non-magnetic materials (D) remain unaffected. Hence, B is paramagnetic.
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