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Needles N(1) , N(2), and N(3) are made o...

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

A

attract all three of them

B

attract `N_(1)andN_(2)` strongly but repel `N_(3)` weakly

C

attract `N_(1)` strongly, `N_(2)` weakly and repel `N_(3)` weakly

D

attract `N_(1)` strongly, but repel `N_(2),N_(3)` weakly

Text Solution

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The correct Answer is:
C
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NARAYNA-MAGNETISM AND MATTER-C.U.Q
  1. The magnetic force required to demagnetise the material is

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  2. The only property possessed by ferromagnetic substance is

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  3. Needles N(1) , N(2), and N(3) are made of a ferromagnetic, a paramagne...

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  4. Relative permittivity and permeability of a material are epsilon(r) ...

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  5. For soft iron, in comparison with steel

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  6. chi(1) and chi(2) are susceptibilities of diamagnetic substance at tem...

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  7. Ferromagnetic msterials owe their properties to

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  8. If a diamagnetic solution is poured into a U-tube and one aem of this ...

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  9. At curie temperature, in ferromagnetic materials

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  10. A sensitive magnetic instrument can be shielded very effectively from ...

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  11. In a permanent magnet at room temperature.

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  12. The angle of dip at a place on the earth gives

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  13. A point near the equator has

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  14. If I is the intensity of earth's magnetic field, H its horizontal comp...

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  15. A line joining places of zero declination is called

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  16. A line joining places of equal declinaiton is called

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  17. The needle of a dip circle when place at a geomagnetic pole stays alon...

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  18. The value of angle of dip is zero at the magnetic equator because on i...

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  19. Earth's magnetic field always has a horizontal component except at

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  20. The core of electromagnet is made of soft iron because a) the susc...

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