Home
Class 11
PHYSICS
The effective length of magnet is 31.4cm...

The effective length of magnet is 31.4cm and its pole strength is 0.8Am. The magnetic moment, if it is bent in the form of a semicircle is…`A-m^(2)`.

A

1.6

B

1.2

C

0.16

D

0.12

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos
  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

Similar Questions

Explore conceptually related problems

The effective length of a magnet is 31.4 cm and its pole strenth is 0.5 Am. The magnetic moment, if it is bent in the form of a semicircile will be

An iron rod of length L and magnetic moment M is bent in the form of a semicircle. Now its magnetic moment will be

What is the geomwtric length of a bar magnet having pole strength 60 Am and magnetic moment 6 Am^(2) ?

A magnetised steel wire 31.4cm long has a pole strength of 0*2Am . It is bent in the form of a semicircle. Calcualte its magnetic moment.

A magnetic dipole of lrngth 10 cm has pole strength of 20 Am apart . Find the magnetic moment of the dipole

A straight steel wire of length l has a magnetic moment M. When it is bent in the form of a semi - circle its magnetic moment will be

The magnetic moment of a length 10 cm and pole strength 4.0 Am will be

The magnetic moment of a magnet is 3.6xx10^(-3)A.m^(2) . Its pole strength is 120 mili amp.M . Its magnetic length is

TARGET PUBLICATION-MAGNETISM-MCQs
  1. If a magnet of pole strenth m is divided into four parts such that the...

    Text Solution

    |

  2. What is magnetic dipole moment? Calculate the magnetic dipole moment o...

    Text Solution

    |

  3. The effective length of magnet is 31.4cm and its pole strength is 0.8A...

    Text Solution

    |

  4. An iron rod of length L and magnetic moment M is bent in the form of a...

    Text Solution

    |

  5. A magnetised wire of moment M is bent into an arc of a circle subtendi...

    Text Solution

    |

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

    Text Solution

    |

  7. A coil of length L, carries a current i. The magnetic moment of coil i...

    Text Solution

    |

  8. A wire of length l, carrying current i, is bent in circle of radius r,...

    Text Solution

    |

  9. A bar magnet of moment M is placed in a magnetic field of indiction B...

    Text Solution

    |

  10. There is no. couple acting when two bar magnets are placed co-axially ...

    Text Solution

    |

  11. A bar magnet of magnetic moment 200 A-m^(2) is suspended in a magnetic...

    Text Solution

    |

  12. A magnet of length 0.1 m and pole strength 10^(-4) A.m. is kept in a m...

    Text Solution

    |

  13. If a magnet of length 10cm and pole strength 40 A-m is placed at an an...

    Text Solution

    |

  14. A closely wound solenoid of 2000 turns and area of cross-section 1.5 x...

    Text Solution

    |

  15. Magentic meridian is a

    Text Solution

    |

  16. The relation between BH, Bv, and B is

    Text Solution

    |

  17. Direction of magnetic field at equatorial point

    Text Solution

    |

  18. At magnetic poles of earth, angle of dip is

    Text Solution

    |

  19. Angle of dip is zero at

    Text Solution

    |

  20. At a certain place the horizontal component of the earth's magnetic fi...

    Text Solution

    |