Home
Class 12
PHYSICS
A bar magnet of length 14 cm is placed i...

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

`2.880 J T ^(-1)`

B

`2.880 xx 10 ^(3) J T ^(-1)`

C

`28.80 J T^(-1)`

D

`2.880 xx 10 ^(2) J T ^(-1)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS (SECTION B)|30 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise PHYSICS SECTION A|60 Videos

  • JEE MAIN 2021

    JEE MAINS PREVIOUS YEAR|Exercise (SECTION - B)|10 Videos

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR|Exercise All Questions|473 Videos

  • JEE MAIN 2022

    JEE MAINS PREVIOUS YEAR|Exercise Question|492 Videos

Similar Questions

Explore conceptually related problems

A bar magnet of length 10cm is placed in the magnetic meridian with its north pole pointing towards the geographical north. A neutral point is obtained at a distance of 12cm from the centre of the magnet. Find the magnetic moment of the magnet, when H=0*34 gauss .

A short bar magnet is placed in the magnetic meridian with its north pole pointing towards geographical south. A neutral point is found at a distance of 30 cm from the centre of the magnet. If the horizontal component of earth's field is 0.4G , calculate the magnetic moment of the magnet .

A bar magnet 30 cm long is placed in the magnetic meridian with its north pole pointing geographical south . The neutral point is found at a distance of 30 cm from its centre . Calculate the pole strength of the magnet . Given B_(H) = 0.34 G .

A 10 cm long bar magnet of magnetic moment 1.34 Am2 is placed in the magnetic meridian with its south pole pointing geographical south. The neutral point is obtained at a distance of 15 cm from the centre of the magnet. Calculate the horizontal component of earth’s magnetic field.

A short bar magnet of magnetic moment 0*5JT^-1 is placed with its magnetic axis in magnetic meridian, with its north pole pointing geographic north. A neutral point is obtained at a distance of 0*1m from the centre of the magnet. Find the horizontal component of earth's magnetic field.

A short bar magnet of magnetic moment 0*5JT^-1 is placed with its magnetic axis in the magnetic meridian, with its north pole pointing geographic north. A neutral point is obtained at a distance of 0*1m from the centre of the magnet. Find the horizontal component of earth's magnetic field.

A bar magnet is placed with its north pole towards geographic north. The neutral point

A short bar magnet of magnetic moment 1.2Am^(2) is placed in the magnetic meridian with its south pole pointing the north. If a neutral point is found at a distance of 20cm from the centre of the magnet, the value of the horizontal component of the earth's magnetic field is

A 30 cm long bar magnet is placed in the magnetic meridian with its north pole pointing south. The neutral point is obtained at a distance of 40 cm from the centre of the magnet. Pole strength of the magnet is (The horizontal component of earth’s magnetic field is 0.34 Gauss)

JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS (SECTION A)
  1. A 25m long antenna is mounted on an antenna towe. The height of the an...

    Text Solution

    |

  2. Time period of a simple pendulum is T inside a lift when the lift is s...

    Text Solution

    |

  3. A bar magnet of length 14 cm is placed in the magnetic meridian with i...

    Text Solution

    |

  4. A block of mass m slides along a floor while a force of magnitude F is...

    Text Solution

    |

  5. A conducting wire of length 'I', area of cross-section A and electric ...

    Text Solution

    |

  6. The velocity-displacement graph describing the motion of a bicycle is ...

    Text Solution

    |

  7. The stopping potential in the context of photoelectric effect depends ...

    Text Solution

    |

  8. A plane electromagnetic wave of frequency 500 MHz is travelling in vac...

    Text Solution

    |

  9. In thermodynamics, heat and work are :

    Text Solution

    |

  10. The angle of deviation through a prism is minimum when (A) Incide...

    Text Solution

    |

  11. The maximum and minimum distances of a comet from the Sun are 1.6 xx 1...

    Text Solution

    |

  12. A block of 200 g mass moves with a uniform speed in a horizontal circu...

    Text Solution

    |

  13. Four equal masses, m each are placed at the corners of a square of len...

    Text Solution

    |

  14. The volume V of an enclosure contains a mixture of three gases, 16 g o...

    Text Solution

    |

  15. For an electromagnetic wave travelling in free space, the relation bet...

    Text Solution

    |

  16. A mass M hangs on a massless rod of length l which rotates at a consta...

    Text Solution

    |

  17. If an electron is moving in the n^(th) orbit of the hydrogen atom, the...

    Text Solution

    |

  18. Two identical metal wires of thermal conductivities K(1) and K(2) resp...

    Text Solution

    |

  19. A polyatomic ideal gas has 24 vibrational modes. What is the value of ...

    Text Solution

    |

  20. A car accelerates from rest at a constant rate alpha for some time, af...

    Text Solution

    |