Home
Class 12
PHYSICS
A small magnet of moment 4.8 xx 10^(-2)...

A small magnet of moment `4.8 xx 10^(-2) ` J/T is suspended freely in the plane of a uniform magnetic field of magnitude `3 xx 10^(-2)` T. If the magnet is slightly displaced from its stable equilibrium and released then the angular frequency of its oscillations in rad/sec. (Moment of inertia of the magnet about the axis of rotation is ` 2.25 xx 10^(-5) kgm^2`)

A

A) 8

B

B) 4

C

C) 3

D

D) 2

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • APPENDICES ( REVISION EXERCISE )

    AAKASH SERIES|Exercise REVISION EXERCISE (MOVING CHANGES & MEGNETISM)|95 Videos

  • ALTERNATING CURRENT

    AAKASH SERIES|Exercise EXERCISE - III|24 Videos

  • APPENDICES (REVISION EXERCISE)

    AAKASH SERIES|Exercise LAW OF MOTION|128 Videos

Similar Questions

Explore conceptually related problems

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 .

The magnetic moment of a magnet is 0.25 A-m^(2) . It is suspended in a magnetic field of intesity 2 xx 10^(-5) T . The couple acting on it when deflected by 30^(@) from the magnetic fields is .

A magnet of moment 4Am^(2) is kept suspended in a magnetic field of induction 5xx10^(-5)T . The workdone in rotating it through 180^(@) is

If the earth's magnetic field has a magnitude 3.4 xx 10^(-5) T at the magnetic equator of the earth, what would be its value at the earth's goemagnetic poles?

A rectangular coil having 60 turns and area of 0.4 m^(2) is held at right angles to a uniform magnetic field of flux density 5 xx 10^(-5)T . Calculate the magnetic flux passing through it.

A magnet of magnetic moment M and having moment of inertia I , is suspended to orient freely in the horizontal plane under the influence of earth's magnetic field . If it is slightly disturbed , the time period is given by

A circular coil of 16 turns and radius 10cm carrying a current of 0.75A rests with its plane normal to an external field of magnitude 5*0xx10^-2T . The coil is free to turn about an axis in its plane perpendicular to the field direction. When the coil is turned slightly and released, it oscillates about its stable equilibrium with a frequency of 2*0s^-1 . What is the moment of inertia of the coil about its axis of rotation?

A circular coil of 16 turns and radius 10cm carrying a current of 0.75A rests with its plane normal to an external field of magnitude 5*0xx10^-2T . The coil is free to turn about an axis in its plane perpendicular to the field direction. When the coil is turned slightly and released, it oscillates about its stable equilibrium with a frequency of 2*0s^-1 . What is the moment of inertia of the coil about its axis of rotation?

An electron experiences a magnetic force of magnitude 4.60 xx 10^-15 N , when moving at an angle of 60^@ with respect to a magnetic field of magnitude 3.50 xx 10^-3 T . Find the speed of the electron.

The magnitude of earth magnetic field at magnetic equator is 2.8 xx 10^(-5) T . Find magnitude of earth's magnetic field near geomagnetic poles .

AAKASH SERIES-APPENDICES ( REVISION EXERCISE )-REVISION EXERCISE (MAGNETISM AND MATTER )
  1. A short bar magnet placed with its axis at 30^@ with a uniform externa...

    Text Solution

    |

  2. A bar magnet takes pi/10 seconds to complete one oscillation in unifor...

    Text Solution

    |

  3. A small magnet of moment 4.8 xx 10^(-2) J/T is suspended freely in t...

    Text Solution

    |

  4. A short bar magnet used in a vibration magnetometer is heated so as to...

    Text Solution

    |

  5. A compass needle makes 10 oscillations per minute in the earths horizo...

    Text Solution

    |

  6. The magnetic needle of a vibration magnetometer makes 12 oscillations ...

    Text Solution

    |

  7. A combination of two identical bar magnets are placed one over the oth...

    Text Solution

    |

  8. A small magnetic needle performs 10 oscillations/minute in the earth's...

    Text Solution

    |

  9. The time period of oscillation of a magnet in a vibration magnetometer...

    Text Solution

    |

  10. A small magnetic needle performs 10 oscillations/minute in the earth's...

    Text Solution

    |

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

    Text Solution

    |

  12. A small magnetic needle performs 10 oscillations/minute in the earth's...

    Text Solution

    |

  13. A deflection magnetometer is adjusted in the usual way . When a magnet...

    Text Solution

    |

  14. A short magnet oscillates in an oscillation magnetometer with a time p...

    Text Solution

    |

  15. Two magnets are held in a viberation magnetometer and are allowed to o...

    Text Solution

    |

  16. With a standard rectangular bar magnet, the time period of a vibration...

    Text Solution

    |

  17. A magnet makes 40 oscilations per minute at a place having magnetic fi...

    Text Solution

    |

  18. Obtain the earth's magnetisation, assuming that the earth's field can ...

    Text Solution

    |

  19. The plane of a dip circle is set in the geographic meridian and the ap...

    Text Solution

    |

  20. A dip circle lying initially in the magnetic meridian is rotated throu...

    Text Solution

    |