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Question: Answered & Verified by Expert
Needles \( N_{1}, N_{2} \) and \( N_{3} \) are made of a ferromagnetic, a paramagnetic and a diamagnetic
substance respectively. A magnet when brought close to them will
PhysicsMagnetic Properties of MatterKCETKCET 2018
Options:
  • A Attract all three of them
  • B Attract \( N_{1} \) strongly,\( N_{2} \) weakly and repel \( N_{3} \) weakly
  • C Attract \( N_{1} \) strongly but repel \( N_{2} \) and \( N_{3} \) weakly
  • D Attract \( N_{1} \) and \( N_{2} \) strongly but \( N_{2} \) repel \( N_{3} \)
Solution:
1064 Upvotes Verified Answer
The correct answer is: Attract \( N_{1} \) strongly,\( N_{2} \) weakly and repel \( N_{3} \) weakly
Given, \( N_{1} \) is ferromagnetic, \( N_{2} \) is paramagnetic; \( N_{3} \) is diamagnetic.
Therefore, \( N_{1} \) is attracted strongly by magnet. \( N_{2} \) is attracted weakly by magnet.
\( N_{2} \) is weakly repelled by magnet.

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