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How will the magnetic field intensity at...

How will the magnetic field intensity at the centre of a circular coil carrying current change, if the current through the coil is doubled and the radius of the coil is halved?

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. The magnitude of induced emf produced depends on the rate of change of...

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  2. Name the physical quantity whose S.I unit is Wb-m^2. Is it is a scala...

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  3. How will the magnetic field intensity at the centre of a circular coil...

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  4. How can it be shown that a magnetic field exists around a wire through...

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  5. How is the strength of the magnetic field at a point near a wire relat...

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  6. What constitutes the field of a magnet?

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  7. How can you show that the magnetic field produced by a given electric ...

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  8. It is observed that when a magnetic compass is brought near a bar magn...

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  9. When is the force experienced by a current carrying conductor placed i...

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  10. What happens to magnetic needle it is brough near a current carrying c...

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  11. Find the force acting on a current carrying conductor placed in an uni...

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  12. Consider a circular loop of wire lying in the plane of the table, let ...

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  13. When is a magnetic field said to be uniform? Draw magnetic lines of fo...

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  14. What is the principle of an electric motor?

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  15. What is the principle of an electric motor?

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  16. Magnetic field lines of two magnets are shown as follows. Name the pol...

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  17. Why two magnetic lines of forces never intersect each other?

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  18. What is the role of the split ring in an electric motor?

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  19. How can it be shown that a magnetic field exists around a wire through...

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  20. Describe an activity with a neat diagram to show the magnetic field li...

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