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The natural magnets have .......... ....

The natural magnets have .......... .

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irregular shape and they are weak
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What are natural magnets?

The magnetic field used to magnetic a material is called the .......... .

Ferromagnetic substances have ................. Magnetic moment.

Magnets found in the nature are called .......

In magnet, the magnetic attraction is maximum at the ............. Of the magnet

Permanent magnets should have

Two short bar magnets have magnetic moments 1.20 Am^(2) and 1.00 Am^(2) respectively . They are kept on a horizontal table parallel to each other with their north poles pointing towards the south . They have a common magnetic equator and are separated by a distance of 20.0 cm. The value of the resultant horizontal magnetic induction the mid point O of the line joining their centers is (Horizontal components of Earth's magnetic induction is (3 xx 10^(-5) Wb m^(-2) ) ...............

Analogy: Natural magnet: Magnetic stones.Artificial magnet:____

FULL MARKS-MAGNETISM AND MAGNETIC EFFECTS OF ELECTRIC CURRENT -ADDITIONAL QUESTIONS SOLVED -III. FILL IN THE BLANKS :
  1. .......... Suggested that earth behaves as a giant bar magnet

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  2. The field at the surface of the earth is approximately equal to .........

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  3. The natural magnets have .......... .

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  4. Piecces of iron or steel that acquired magnetic properties when it is ...

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  5. Artificial magnet in the form of a rectangular or cylinderical bar is ...

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  6. In magnet, the magnetic attraction is maximum at the ............. Of ...

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  7. The unit of pole strenghts is .................. .

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  8. The unit of magnetic flu xxdensity is ................

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  9. The value of mu(0) Is equal to ............ .

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  10. A unit pole exxperiences a force of ............. .

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  11. At netutral points the resultant magnetic field due to the magnet and ...

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  12. The circular scale of deflection magneto meter is divided into ..........

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  13. Each quadrant of the circular scale of deflection magnetometer is grad...

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  14. The sensitivity of the deflection magnet meter is more at ........ .

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  15. The magnetic field used to magnetic a material is called the ............

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  16. The unit of magnetic field is

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  17. The magnetic moment per unit volume of the material is termed as ........

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  18. The magnetic moment per unit volume of the material is termed as ........

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  19. In diamagnetic materials the net magnetic moment of atoms is ............

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  20. The susceptibility of diamagnetic materials has a ................ . V...

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