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A bar magnet of magnetic moment 1.5JT^-1...

A bar magnet of magnetic moment `1.5JT^-1` lies aligned with the direction of a uniform magnetic field of `0.22T`.
(a) What is the amount of work done to turn the magnet so as to align its mangetic moment
(i) normal to the field direction, (ii) opposite to the field direction?
(b) What is the torque on the magnet in cases (i) and (ii)?

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NCERT TAMIL-MAGNETISM AND MATTER-Exercises
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  8. A short bar magnet placed with its axis at 30^@ with a uniform extern...

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  9. A short bar magnet of moment 0*32JT^-1 is placed in a uniform external...

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  10. A closely wound solenoid of 800 turns and area of cross section 2*5xx1...

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  11. If the solenoid in the above question is free to turn about the vertic...

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  12. A bar magnet of magnetic moment 1.5JT^-1 lies aligned with the directi...

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  13. A closely wound solenoid of 2000 turns and area of cross section 1.6xx...

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  14. A circular coil of 16 turns and radius 10cm carrying a current of 0.75...

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  15. A magnetic needle free to rotate in a vertical plane parallel to the m...

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  16. At a certain location in Africa, compass points 12^@ west of geographi...

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  17. A short bar magnet has a magnetic moment of 0*48JT^-1. Give the direct...

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  18. A short bar magnet placed in a horizontal plane has its axis aligned a...

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  19. If the bar magnet in the above problem is turned around by 180^@, wher...

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  20. A short bar magnet of mangetic moment 5*25xx10^-2JT^-1 is placed with ...

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