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Why don't two magnetic field lines inter...

Why don't two magnetic field lines intersect each other?

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The two magnetic lines of force do not intersect each other because the resultant force on a north pole at any point on a magnetic line of force can be only in one direction. If, however, the two magnetic lines of force intersected (or crossed) each other, it would mean that at the point of intersection, the compass needle would point in two directions at the same time, which is not possible.
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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. Draw magnetic field lines around a bar magnet.

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  2. List the properties of magnetic lines of force.

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  3. Why don't two magnetic field lines intersect each other?

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  4. Consider a circular loop of wire lying in the plane of the table. Let ...

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  5. The magnetic field in a given region is uniform. Draw a diagram to rep...

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  6. Choose the correct option: The magnetic field inside a long straight...

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  7. Which of the following properties of a proton can change while it move...

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  8. A positively-charged particle (alpha particle) projected towards west ...

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  9. State Fleming's left-hand rule.

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  10. What is the principle of an electric motor?

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

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  12. Explain different ways to induce current in a coil.

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  13. State the principle of an electric generator.

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  14. Name some sources of direct current.

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  15. Which sources produce alternating current?

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  16. Choose the correct option: A rectangular coil of copper wires is rot...

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  17. Name two safety measures commonly used in electric circuits and applia...

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  18. An electric oven of a 2kW power rating is operated in a domestic circu...

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  19. What precaution should be taken to avoid the overloading of domestic e...

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  20. Which of the following correctly describes the magnetic field near a l...

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