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The erth's magnetic field...

The erth's magnetic field

A

varies in direction but not in magnitude

B

varies in magnitude but not in direction

C

varies in both magnitude and direction

D

is centred exactly about the centre of the earth

Text Solution

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The correct Answer is:
C
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NARAYNA-MAGNETISM-C.U.Q
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  2. The source of magnetic field is

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  3. The erth's magnetic field

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  4. The electric and magnetic field lines differ in that

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  5. The incorrect statement regarding the lines of force of the magnetic f...

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  6. Two bar magnets are placed on a piece of cork which folats on water. T...

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  7. When a bar magnet of magnetic moment barM is placed in a magnetic fiel...

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  8. The lines of forces due to earth's horizontal component of magnetic fi...

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  9. In case of a bar magnet, lines of magnetic induction

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  10. The total number of magnetic lines of force originating or terminating...

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  11. A magnetic needle is kept in a non uniform magnetic field . It experie...

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  12. A bar magnet of moment bar(M) is in a magnetic field of induction bar...

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  13. The effect due to uniform magnetic field on a freely suspended magneti...

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  14. A magnet is kept fixed with its length parallel to the magnetic meridi...

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  15. There is no. couple acting when two bar magnets are placed co-axially ...

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  16. Find the wrong statement among the following. Two unlike isolated magn...

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  17. A magnetic field is produce and directed along y-axis. A magnet is pl...

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  18. When N-pole of the given bar magnet is placed on a table pointing geog...

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  19. When S-pole of the given "bar" magnet is placed on a table pointing ge...

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  20. A very long magnet is held vertically with its south pole on a table....

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