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Which of the following is a weak magnet?

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Which of the following is a weak magnet?

(a) Ferromagnetic material

(b) Antiferromagnetic

(c) Paramagnetic

(d) Diamagnetic

This question was posed to me during an interview.

This intriguing question comes from Classification of Magnetic Materials in section Magnetic Properties of Materials of Engineering Physics II

1 Answer

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Correct option is (d) Diamagnetic

Easiest explanation: The diamagnets are called weak magnets because there is no permanent dipole moment. Their net magnetic moment is zero.

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