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What are null points ?...

What are null points ?

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The locations where field intensity is zero are called null points .
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NEW JOYTHI PUBLICATION-MAGNETISM AND MATTER-EVALUATION QUESTIONS AND ANSWERS
  1. If the above needle is taken to the pole and the magnetic equator have...

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  2. How can we resolve the earth's magnetic field at a place into two rect...

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  3. What are null points ?

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  4. What is the magnetic field along the axis and equatorial line of a bar...

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  5. Null points are obtained on the axial line , when the north pole of th...

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  6. Null points are obtained on equatorial line, when the north pole of th...

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  7. A magnetic substance is placed in magnetic fields of different intensi...

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  8. After magnetising a substance , by measuring which quantity we can und...

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  9. When we apply an external magnetising field to a material , what will ...

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  10. It there any relation between B and H ?

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  11. Is there any relation between M and H ?

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  12. Do all materials have a net magnetic moment in the normal state ?

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  13. What is the reason for magnetic moment of material ?

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  14. Do all materials behave in the same manner in a magnetic field ?

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  15. Pick the odd out of the following based on torque .

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  16. The interaction of electric charges q1 and q2 separated by a distance ...

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  17. A single pole doesn't exist . Why ?

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  18. The north pole of a freely suspended magnet points towards geographica...

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  19. When a bar magnet is dropped from the top of a building its magnetism ...

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  20. Is there difference between magnetic lines of force and electric lines...

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