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What is the example of diamagnetic materials?(a) Quartz(b) Pyrite(c) Montmorillonite(d) BiotiteThe question was posed to me in an interview for job.This intriguing question originated from Magnetic Materials topic in section Electrical Engineering Materials of Design of Electrical Machines

Answer»

Correct option is (a) QUARTZ

Explanation: The other 3 materials are PARAMAGNETIC in nature, which MEANS magnetization is slightly above 1. Quartz is a DIAMAGNETIC material in which the magnetization is negative.



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