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A magnet is placed vertically on a paper...

A magnet is placed vertically on a paper. Then, the neutral point obtained on the paper is

A

one only

B

two only

C

three only

D

zero

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A small bar magnet has a magnetic moment 5Am^2. The neutral point is obtained on axial line when it is placed in magnetic meridian with its N pole pointing S of earth and neutral point is obtained on equatorial line, when it is placed with its N pole pointing towards north of earth. If horizontal component of earth's field is 0.38G, find the position of neutral points in the two cases.

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MODERN PUBLICATION-TEXTUAL QUESTIONS-EXERCISE
  1. The angle of dip at the magnetic equator is

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  2. The angle of dip is theta at a place, where the horizontal and vertica...

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  3. A magnet is placed vertically on a paper. Then, the neutral point obta...

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  4. The period of oscillation of a magnet in vibration magnetometer is 2 s...

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  5. A magnet suspended in earth's magnetic field can vibrated in horizonta...

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  6. The time period of oscillation of a freely suspended manet does not de...

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  7. A magnet was found to vibrate at a place with a period of T.A piece of...

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  8. A thin rectangular magnet suspended freely has a period of oscillation...

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  9. Which of following is not a unit of the intensity of magnetisation?

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  10. Which of the following is not the unit of magnetic induction ?

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  11. Which of the following is ferromagnetic?

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  12. An example of a ferromagnetic substance is

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  13. If the premanent magnetic moment of the atoms of a substance is zero, ...

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  14. From molecular view point, discuss the temperature dependence of susce...

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  15. The magnetic permeability is maximum for

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  16. Suspectibility is positive for

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  17. Choose the correct answer

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  18. Fill ups At ……………………..temperature a ferromagnetic material passes over...

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  19. Above curie temperature

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  20. The area of B-H curve is an indication of

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