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A student performs an experiment to stud...

A student performs an experiment to study the magnetic effect of current around a current carrying straight conductor with the help of a magnetic compass. He reports that
The direction of deflection of the magnetic compass increases when the current through the conductor is increased. Which of the above observations of the student appears to be wrong and why?

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. A student performs an experiment to study the magnetic effect of curre...

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  2. Write the S.I. unit of magnetic field vecB.

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  3. With the help of which rule can you find the direction o magneitc fiel...

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  4. An electric motor converts one form of energy to another .Name these f...

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  5. What is the principle of an electric motor?

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  6. What is a compass needle?

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  7. what happens to the strength of magnetic field if currnt flowing in th...

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  8. Whenever there is a relative motion between a coil and a magnet ,and i...

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  9. The device used for producing electric current is called,

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  10. Switch is connected to which wire-live neutral or earth?

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  11. What is the colour of neutral wire in a domestic electric circuit?

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  12. In an electric circuit... is always connected in parallel

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  13. Which of the two circuits 5 ampere or 15 ampere requires a thin fuse w...

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  14. Does current prefers to move in a high or low resistence path?

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  15. What is the composition of the alloy of which the electric fuse is mad...

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  16. What is the frequency of household supply of a.c. in India?

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  17. Lodestone(Fe3O4) has enormous application because it is a strong magne...

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  18. Unlike poles repel each other. Is this statement true.

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  19. The magnetic field lines

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  20. Magnetic field lines are discontinuous curves. Is this statement true.

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

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