Home
Class 12
PHYSICS
A circular coil of 300 turns and diamete...

A circular coil of `300` turns and diameter `14cm` carries a current of `15A`. What is the magnitude of magnetic moment linked with the loop?

A

29.27 `Am^(2)`

B

89.27`Am^(2)`

C

49.27 `Am^(2)`

D

69.27`Am^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
n=300,r=7cm,I=15A,M=?
M=mIA
`nIpir^(2)`ltbrge`300xx15xx3.14xx49xx10^(-4)`
`=69.27Am^(2)`
Promotional Banner

Topper's Solved these Questions

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

  • MCQS FROM BOARD EXAM

    NIKITA PUBLICATION|Exercise COMMUNICATION SYSTEMS|7 Videos

Similar Questions

Explore conceptually related problems

A circular coil of 300 turns and diameter 14cm carries a current of 15A . What is the magnetic moment of the loop?

A circular coil of 300 turns and average area 5xx10^(-3)m^(2) carries a current of 15 A. Calculater the magnitude of magnetic moment associated with coil.

A circular coil of wire consisting of 100 turns each of radius 8cm carries a current of 0.4A. What is the magnitude of magnetic field at the center of the coil

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A. What is the magnitude of the magnetic field B at the centre of the coil?

A circular coil of radius 10 cm "and" 100 turns carries a current 1A. What is the magnetic moment of the coil?

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of magnetic field at the centre of the coil?

A circular coil of wire consisting of 100 turns each of radius 9 cm carries a current of 0.4 A. The magnitude of the magnetic field at the centre of coil is [ mu_(0) = 1256 xx 10^(-7) Sl unit]

NIKITA PUBLICATION-MAGNETISM -MCQs
  1. The electron in the hydrogen atom is moving with a speed at 2.3xx10^(6...

    Text Solution

    |

  2. A closely wound solenoid of 1000 turns and area of cross-section 2xx10...

    Text Solution

    |

  3. A circular coil of 300 turns and diameter 14cm carries a current of 15...

    Text Solution

    |

  4. In a hydrogen atom,an electron revolves with a frequency of 6.8xx10^(9...

    Text Solution

    |

  5. A circular coil of radius 4 cm having 20 turns carries a current of 3A...

    Text Solution

    |

  6. A current of 2 ampere is passed in a coil of radius 0.5 m and number o...

    Text Solution

    |

  7. The areas of cross-section of three magnets of same length are A,2AA a...

    Text Solution

    |

  8. Maghnetic dipole moment of revolving electron is

    Text Solution

    |

  9. The ratio of magnetic dipole moment to angular momentum of electron is

    Text Solution

    |

  10. The gyromagnetic ratio of electron is

    Text Solution

    |

  11. Magnetic dipole moment of revolving electron is

    Text Solution

    |

  12. An electron in an atom revolves the nucleus in an orbit of radius 0.53...

    Text Solution

    |

  13. An electron in an atom revolves around the nucleus in an orbit of radi...

    Text Solution

    |

  14. The ratio of magnetisation I to the magnetic field intensity H is

    Text Solution

    |

  15. The magnetic dipole moment per unit volume of the substance is knwn as

    Text Solution

    |

  16. The ratio of magnetic induction (B)to the strength of magnetising fiel...

    Text Solution

    |

  17. The ratio of the intensity of the magnetisation to the strength of mag...

    Text Solution

    |

  18. The relation between magnetic induction(B),magnetising field (H)And th...

    Text Solution

    |

  19. For a paramagnetic material,the dependence of the magnetic susceptibil...

    Text Solution

    |

  20. If M is magnetic moment developed in the material having volume V,then...

    Text Solution

    |