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A magnet of magnetic moment 2JT^(-1) is ...

A magnet of magnetic moment `2JT^(-1)` is aligned in the direction of magnetic field of `0.1T`. What is the net work done to bring the magnet normal to the magnrtic field?

A

`0.1J`

B

`0.2J`

C

`1J`

D

`2J`

Text Solution

Verified by Experts

The correct Answer is:
B
`W= MB(1-costheta)=2xx0.1xx(1-cos 90^(@))=0.2J`
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A2Z-MAGNETISM AND MATTER-Section D - Chapter End Test
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  7. The magnet field lines due to a bar magnet are correctly shown in

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  15. If the magnetic flux is expressed in weber, then magnetiv induction ca...

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  16. Magnetic intensity for an axial point due to a short bar magnet of mag...

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  17. A small rod of bismuth is suspended freely between the poles of a stro...

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  18. Magnetic moment of two bar magnets may be compared with the help of

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  19. At place, the magnitudes of the horizontal component and total intensi...

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  20. The angle of dip at a certain place is 30^(@). If the horizontal compo...

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  21. The horizontal component of the earth's magnetic field is 0.22 Gauss a...

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