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The work done in rotating a magnet from ...

The work done in rotating a magnet from the direction of uniform field to the opposite direction of the field is W. Find work done in rotating the magnet from the field direction to half the maximum couple position

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To solve the problem of finding the work done in rotating a magnet from the direction of a uniform magnetic field to half the maximum couple position, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Torque in a Magnetic Field**: The torque (\( \tau \)) on a magnetic dipole in a magnetic field is given by the formula: \[ \tau = \mathbf{m} \times \mathbf{B} = mB \sin \theta ...
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AAKASH SERIES-MAGNETISM-PROBLEMS (LEVEL-II)
  1. The force between two poles is reduced to P newton, when their origina...

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  2. The field intensities of two points on the axial line of a bar magnet ...

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  3. The magnetic induction on the equatorial line of a short magnet at dis...

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  4. A short bar magnet produces magnetic fields of equal induction at two ...

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  5. Calculate the moment of couple required to keep a bar magnet of magnet...

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  6. A bar magnet of length 0.2m placed in a uniform magnetic field of indu...

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  7. A bar magnet of magnetic moment 2.0 A m^2 is free to rotate about a ve...

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  8. A magnet of magnetic moment 5Am^(2) is freely suspended in a uniform m...

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  9. A very long magnet of pole strength 4A-m is placed vertically with its...

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  10. A short bar magnet is placed with its north pole pointing north. The n...

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  11. A magnet is suspended in such a way that it oscillates in the horizont...

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  12. A magnet makes 10 oscillations per minute at a place where the angle o...

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  13. A magnetic needle is free to rotate in a vertical plane which makes an...

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  14. The work done in rotating a magnet from the direction of uniform field...

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  15. A freely suspended short magnet makes 20 oscillations per minute in th...

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  16. In an uniform field the magnetic needle completes 10 oscillations in 9...

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