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Two identical thin bar magnets each of l...

Two identical thin bar magnets each of length l and pole strength m are placed at right angles to each other with north pole of one touching the south pole of the other magnetic moment of the system is

A

ml

B

2ml

C

`sqrt2ml`

D

(1/2)ml

Text Solution

Verified by Experts

The correct Answer is:
C
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PATHFINDER-MAGNETIC EFFECT OF CURRENT AND ELECTROMAGNETISM-I,II AND III-QUESTION BANK
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  4. The work done by an external agent in turning a magnet of magnetic mom...

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  5. A short bar magnet placed with its axis at 30^@ with a uniform externa...

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  7. A bar magnet of magnetic moment 3.0Am^2 is placed in a uniform magneti...

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  8. A bar magnet when placed at an angle of 30^@ to the direction of magne...

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  9. A magnet of magnetic moment 2J/T is alligned in the direction of magne...

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  10. Earth's magnetic field always has a horizontal component except at

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  11. If the angles of dip at two places are 30^@ and 45^@ respectively then...

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  12. A dip circle is at right angle to the magnetic meridian what will be t...

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  13. The earth's magnetic field at a certain place has a horizontal compone...

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  14. Lines which represent places of constant angle of dip are called

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  15. The resulting magnetic field at the point O due to the current carryin...

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  16. A long straight wire of radius R carries a steady current whichis unif...

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  17. Two circular coils of radii 10cm and 40cm are connected in series to a...

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  18. Two thin long parallel wires separated by a distance b are carrying cu...

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  19. A long staright wire along the z axis carries a current I in the negat...

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  20. A charged particle is released from rest in a region of steady and uni...

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