Home
Class 12
PHYSICS
A very long magnet of pole strength 4 Am...

A very long magnet of pole strength `4 Am` is placed vertically with its one pole on the table. The distance form the pole, the neutral point will be formed is `(B_(H)=4xx10^(-5)T)`

A

0.5m

B

0.1m

C

0.15m

D

6.66m

Text Solution

Verified by Experts

The correct Answer is:
B
`B_(H)=mu_(0)/(4pi)(M)/d^(2)`
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 2 (C.W)|42 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 2 (H.W)|24 Videos

  • MAGNETISM AND MATTER

    NARAYNA|Exercise EXERCISE - 1 (C.W)|52 Videos

  • MAGNETISM

    NARAYNA|Exercise LEVEL-II (H.W)|24 Videos

  • MOVING CHARGES AND MAGNETISM

    NARAYNA|Exercise EXERCISE - 4|20 Videos

Similar Questions

Explore conceptually related problems

A very long magnet is held vertically with its south pole on a table. A single neutral point is located on the table to the

A very long magneti is placed vertically with one pole on the table. A neutral point was found at 20 cm from the pole. What is the pole strength if the vertical component of earth's field is 0.4xx10^(-4)Wb//m^(2) ?

A bar magnet of length 14 cm is placed in the magnetic meridian with its north pole pointing towards the geographic north pole. A neutral point is obtained at a distance of 18 cm from the center of the magnet. If B_(H)=0.4 G, the magnetic moment of the magnet is (1G = 10 ^(-4) T)

A bar magnet of length 8 cm and having a pole strengh of 1.0 A m is placed vertically on a horizontal table with its south pole on the table. A neutral point is found on the table at a distance of 6.0 cm north of the magnet. Calculate the earth's horizontal magnetic field.

A magnetic pole of pole strength 9.2Am . Is placed in a field induction 50xx10^(-6) tesla. The force expericenced by the pole is

NARAYNA-MAGNETISM AND MATTER-EXERCISE - 1 (H.W)
  1. A short bar magnet placed with its axis at 30^(@) with a uniform exter...

    Text Solution

    |

  2. When a bar magnet is placed at 90^(@) to a uniform magnetic field, it ...

    Text Solution

    |

  3. A magnet of moment 4Am^(2) is kept suspended in a magnetic field of in...

    Text Solution

    |

  4. The work done in rotating the magnet form the direction of uniform fie...

    Text Solution

    |

  5. The work done in rotating a magnet of pole strength 1 A-m and length 1...

    Text Solution

    |

  6. The work done in turning a magnet normal to field direction from the d...

    Text Solution

    |

  7. A magnet is parallel to a uniform magnetic field. The work done in rot...

    Text Solution

    |

  8. The magnetic induction field strength at a distance 0.2 m on the axial...

    Text Solution

    |

  9. A short bar magnet of magnetic moment 1.2Am^(2) is placed in the magne...

    Text Solution

    |

  10. A very long magnet of pole strength 4 Am is placed vertically with its...

    Text Solution

    |

  11. A bar magnet of magnetic moment M and moment of inertial I is in the d...

    Text Solution

    |

  12. If the moments of inertia of two bar magnets are same, and if their ma...

    Text Solution

    |

  13. If the strength of the magnetic field is increased by 21% the frequenc...

    Text Solution

    |

  14. A bar magnet has a magnetic moment equal to 65xx10^(-5) wever x metre....

    Text Solution

    |

  15. Two bar magnets are placed in vibration magnetometer and allowed to vi...

    Text Solution

    |

  16. The magnetic induction and the intensity of magnetic field inside an i...

    Text Solution

    |

  17. The mass of an iron rod is 80 gm and its magnetic moment is 10 Am^(2)....

    Text Solution

    |

  18. A rod of cross sectional area 10cm^(2) is placed with its length paral...

    Text Solution

    |

  19. A bar magnet of magnetic moment 10Am^(2) has a cross sectional area of...

    Text Solution

    |

  20. The variation of magnetic susceptibility (chi) with temperature for a ...

    Text Solution

    |