Home
Class 12
PHYSICS
The work done in turning a magnet of mag...

The work done in turning a magnet of magnetic moment 'M' by an angle `90^(@)` from the meridian is 'n' time the corresponding work done to turn it through an angle of `60^(@)`. What is the value of n?

A

2

B

1

C

`1/3`

D

`1/4`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION C)|34 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION D)|26 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION A)|36 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION-D) (Assertion-Reason Type Questions)|15 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    AAKASH INSTITUTE ENGLISH|Exercise SECTION - J|9 Videos

Similar Questions

Explore conceptually related problems

The work done in turning a magnet of magnetic moment 'M' by an angle of 90^(@) from the meridian is 'n' times the corresponding work done to turn it through an angle of 60^(@) , where 'n' is given by

The work done in turning a magnet of magnetic moment 'M' by an angle of 90^(@) from the meridian is 'n' times the corresponding work done to turn it through an angle of 60^(@) , where 'n' is given by

A magnet of magnetic moment M is rotated through 360^(@) in a magnetic field H, the work done will be

A magnet of magnetic moment M is situated with its axis along the direction of a magnetic field of strength B . The work done in rotating it by an angle of 180^(@) will be

A magnet of magnetic moment M is situated with its axis along the direction of a magnetic field of strength B . The work done in rotating it by an angle of 180^(@) will be

The work done in rotating a bar magnet f magnetic moment M from its unstable equilibrium positon to its stable equilibrium position in a uniform magnetic field B is

The work done in rotating a bar magnet of magnetic moment M from its unstable equilibrium position to its stable equilibrium position in a uniform magnetic field B is

An electric dipole of moment vecp is placed normal to the lines of force of electric intensity vecE , then the work done in deflecting it through an angle of 180^(@) is

The final torque on a coil having magnetic moment 25 A m2 in a 5 T uniform external magnetic field, if the coil rotates through an angle of 60^(@) under the influence of the magnetic field is

A magnet of magnetic moment 20 A - m^(2) is freely suspended is a uniform magnetic field of strength 6 T . Work done to rotate it by 60^(@) will be .

AAKASH INSTITUTE ENGLISH-MAGNETISM AND MATTER -ASSIGNMENT (SECTION B)
  1. The vertical component of earth's magnetic field at a place is sqrt3 ...

    Text Solution

    |

  2. The figure illustrates how B, the flux density, inside a sample of fer...

    Text Solution

    |

  3. The work done in turning a magnet of magnetic moment 'M' by an angle 9...

    Text Solution

    |

  4. Soft iron is used in many electrical machines for:

    Text Solution

    |

  5. A small bar magnet A oscillates in a horizontal plane with a period T ...

    Text Solution

    |

  6. Two different magnets are tied together and allowed to vibrate in a ho...

    Text Solution

    |

  7. The value of apparent angles of dip at two places measured in two mutu...

    Text Solution

    |

  8. A bar magnet is placed with its north pole towards geographic north. T...

    Text Solution

    |

  9. The value of horizontal component of earth's magnetic field at a place...

    Text Solution

    |

  10. The period of oscillation of a magnet of a vibraion magnetometer is 2....

    Text Solution

    |

  11. If phi is lattitude and del is dip at a place then

    Text Solution

    |

  12. Magnetic susceptibility of a diamagnetic substances

    Text Solution

    |

  13. Area of B-H curve measures the energy loss

    Text Solution

    |

  14. A wire of length L metre carrying a current I ampere is bent in the fo...

    Text Solution

    |

  15. Bohr magnetonis given by (symbols have their usual meanings)

    Text Solution

    |

  16. The unit of magnetic susceptiblity is

    Text Solution

    |

  17. One weber is equal to

    Text Solution

    |

  18. If number of turns of cross-section of the coil of a tangent galvanome...

    Text Solution

    |

  19. Two short bar magnets of magnetic moments m each are arranged at the o...

    Text Solution

    |

  20. If declination at a place is known to be 15 ^(@) E. And a compass need...

    Text Solution

    |