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Explain why ferromagnetic substances are...

Explain why ferromagnetic substances are used to make permanent magnets.

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Ferromagnetic substances have

The alloy used for making permanent magnet is

Which one is ferromagnetic substance ?

PEARSON IIT JEE FOUNDATION-MAGNETISM -TEST YOUR CONCEPTS (Very Short Answer Type Questions)
  1. What is the use of a dip circle?

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  2. What is meant by demagnetization ?

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  3. Write short notes on the earth's magnetic field.

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  4. Define terrestrial magnetism.

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  5. Give two properties of lines of force.

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  6. How are the molecular magnets of a magnet affected, when the magnet is...

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  7. Magnetic lines of force intersect each other .

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  8. Draw the lines of force due to two bar magnets, north pole of one faci...

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  9. Why does north pole of a magnet points towards geographical north ?

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  10. Draw a neat diagram of lines of force around two bar magnets placed as...

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  11. Give details regarding angle of inclination and declination.

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  12. Explain why artificial magnets are preferred to natural magnets.

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  13. How can a magnet be demagnetized ?

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  14. Explain why ferromagnetic substances are used to make permanent magnet...

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  15. Write short notes on magneic keepers.

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  16. Magnetic induction precedes attraction. Explain

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  17. What properties of magnetic substance are explained on the basis of mo...

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  18. Draw the lines of force of a bar magnet neglecting the earth's magneti...

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  19. Give two properties of lines of force.

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  20. Draw the lines of force due to two bar magnets, the north pole of one ...

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