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The earth's magnetic field...

The earth'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 in direction

D

is centred exactly about the centre of the earth

Text Solution

Verified by Experts

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

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  3. The earth's magnetic field

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

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  8. Lines of force due to earth's horizontal magnetic field are

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

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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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  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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