Home
Class 12
PHYSICS
A magnet of magnetic moment M amd pole s...

A magnet of magnetic moment M amd pole strenth m is divided in two equal parts, then magnetic moment of each part will be

A

M

B

`M//4`

C

`sqrt2M`

D

`m//3`

Text Solution

Verified by Experts

The correct Answer is:
d
(d) As magnetic moment =pole strength x length and length is halved without affecting pole strength, therefore, magnetic moment becomes half.
Promotional Banner

Topper's Solved these Questions

  • MAGNETISM AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE-2:CONCEPT APPLICATOR|31 Videos

  • MAGNETISM AND MATTER

    DISHA PUBLICATION|Exercise EXERCISE-2:CONCEPT APPLICATOR|31 Videos

  • LAWS OF MOTION

    DISHA PUBLICATION|Exercise Exercise-2 : Concept Applicator|30 Videos

  • MECHANICAL PROPERTIES OF FLUIDS

    DISHA PUBLICATION|Exercise EXERCISE-2 CONCEPT APPLICATOR|24 Videos

Similar Questions

Explore conceptually related problems

A magnet of magnetic moment M and pole strength m is divided in two equal parts, then magnetic moment of each part will be

A bar magnet of magnetic moment M and pole strength m is broken in two equal part along the magnetic axis . The magnetic moment and pole strength of each part are

A magnet of length 2l and pole strength m is divided in two equal parts along its length. What is magnetic moment of each part?

A bar magnet of magnetic moment M is cut into two parts of equal length/breadths.The magnetic moment of each part will be

A bar magnet of magnetic moment M and pole strength m is broken into two pieces at the middle. The magnetic moment and pole strength of each piece will be

A bar magnet of magnetic moment 80 units is cut into two halves of equal length, the magnetic moment of each half will be:

The product of the length of the magnet and its pole strength is called the moment of a magnet or Magnetic moment. If 'm' is the pole strength and 2l is the length of the magnet then, the moment of the magnet or Magnetic moment is given by. M =m xx 2l . Also, Magnetic moment is a vector quantity, with its direction from south pole to north pole along its axial line. If a bar magnet of magnetic moment 80 units be cut into two halves of equal lengths the magnetic moment of each half will be

A magnet of magnetic moment M of length 22 cm is bent into a semicircle.Now the magnetic moment is

A long magnetic needle of length 2L, magnetic moment M amd pole strength m units is broken into two pieces at the middle. The magnetic moment amd pole strength of each piece will be

A bar magnet of magnetic moment M is cut into four parts of equal length. The magnetic moment of each part is

DISHA PUBLICATION-MAGNETISM AND MATTER-EXERCISE-1:CONCEPT BUILDER (TOPICWISE)
  1. Point A and B are situated along the extended axis of 2 cm long bar ma...

    Text Solution

    |

  2. The net magnetic moment of two identical magnets each of magnetic mome...

    Text Solution

    |

  3. A magnet of magnetic moment M amd pole strenth m is divided in two equ...

    Text Solution

    |

  4. A steel wire of length l has a magnetic moment M. It is bent into a se...

    Text Solution

    |

  5. A steel wire of length l has a magnetic moment M. It is bent in L-shap...

    Text Solution

    |

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

    Text Solution

    |

  7. Which of the following is responsible for the earth's magnetic field?

    Text Solution

    |

  8. A compass needle whose magnetic moment is 60 Am^(2), is directed towar...

    Text Solution

    |

  9. The horizontal component of the earth's magnetic field is 3.6 xx 10^(-...

    Text Solution

    |

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

    Text Solution

    |

  11. A short magnet of length 4 cm is kept at a distance of 20 cm to the ea...

    Text Solution

    |

  12. A short bar magnet with its north pole facing north forms a neutral po...

    Text Solution

    |

  13. At the magnetic north pole of the earth, the value of horizontal compo...

    Text Solution

    |

  14. At a certain place , horizontal component of earth's field is sqrt3 ti...

    Text Solution

    |

  15. At a certain place the angle of dip is 30^(@) and the horizontal compo...

    Text Solution

    |

  16. A bar magnet is oscillating in the earth's magnetic field with a perio...

    Text Solution

    |

  17. Horizontal component of earth's field at a height of 1 m from the surf...

    Text Solution

    |

  18. The earth's magnetic field lines resemble that of a dipole at the cent...

    Text Solution

    |

  19. A current carryingcoil is placed with its axis perpendicular to N-S di...

    Text Solution

    |

  20. The B-H curve (i) and (ii) shown in fig associated with

    Text Solution

    |