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What is the effective length of a bar ma...

What is the effective length of a bar magnet ?

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Effective length: The shortest length between the magnetic North Pole and the magnetic South Pole of a magnet is called effective length of the magnet
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PEARSON IIT JEE FOUNDATION-THE MAGICAL MAGNETISM -TEST YOUR CONCEPTS(Short Answer Type Questions)
  1. Define the following terms. Magnetic axis

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  2. Define the following terms. Length of a bar magnet

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  3. What is the effective length of a bar magnet ?

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  4. Define pole, axis, equator and magnetic meridian of a bar magnet

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  5. What the the properties of a bar magnet ?

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  6. What the advantages of an electromagnet ?

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  7. Mention some of the applications of a magnet .

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  8. Differentiate between temporary and permanent migrants.

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  9. What is meant by dipole in magnetism?

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  10. What is meant by magnetizing a material and how does this happen ?

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  11. The bar magnet suspended freely aligns itself in the north-south direc...

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  12. What is the use of compass for sailors ?

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  13. Why are the magnets used in earphones or speakers?

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  14. A boy playing in sand with a magnet notices some dust or particles att...

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  15. Match the following columns.

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  16. Explain with diagram what happens when a bar magnet is cut into two pi...

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  17. Consider a magnet which is hung by the hook of a spring as shown in fi...

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  18. Which of the following arrangements produces a stronger electromagnet ...

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  19. Which of the following arrangements produces a stronger electromagnet ...

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  20. Consider a magnet which is hung to the hook of a spring as shown in fi...

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