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JEE PHYSICS MCQ: MAGNETISM AND MATTER

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The susceptibility of certain magnetic material is 5000 . What is the class of magnetic material?

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Correct option: C

Ferromagnetic

Option C (Ferromagnetic) is correct because ferromagnetic materials have very high susceptibility values (much greater than 1).

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Curie temperature is the one above which A vibration magnetometer consists of two identical bar magnets placed one over the other such that they are perpendicular and bisect each other. The time period of oscillation in a horizontal magnetic field is

{2^{5/4}}

s. One of the magnets is removed and if the other magnet oscillates in the same field , then the time period in second is The relative permeability of a substance

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\mu_{\mathrm{d}}, \mu_{\mathrm{p}}

\mu_{\mathrm{f}}

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