Home
Class 11
PHYSICS
Suppose we wish to have a current carryi...

Suppose we wish to have a current carrying coil equivalent to a magnet with moment `10 A m^(2)`. When the coil has 75 turns and carries a current of 120 mA, the area of the coil is

A

`0.1cm^(2)`

B

`1.1m^(2)`

C

`1.2m^(2)`

D

`11.2m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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

A current carrying coil is equivalent to

A current carrying coil represents

A 50 mH coil carries a current of 2 ampere. The energy stored in joules is

A solenoid is 2 m long and 3 cm in diameter. It has 1000 turns and carries a current of 5A. Magnetic field at the centre is

The magnetic moment of a square coil having 5 turns, each side measuring 4 cm and carrying a current of unit ampere is

The magnetic moment of a square coil having 5 turns, each side measuring 4 cm and carrying a current of unit ampere is

Define magnetic dipole moment of a current carrying coil.

Two concentric circular coils x and y of radius 16 cm and 10 cm respectively, lie in the same vertical plane containing the north to south direction coil x has 20 turns and carries current of 16A coil y has 25 turns and carries a current of 18A! The sense of the current in x is anticlockwise and clockwise in y for an observe looking at the coils facing west. Give The magnitude and direction of net magnetic field due to the coils at the centre.

A circular coil of diameter 9 cm has 30 turns of wire which carry current of 1 ampere. The magnetic moment of the coil is

The ratio of magnetic field at the centre of a current carrying circular coil to its magnetic momnts is x. If the current and radius both are doubble the new ratio will become

TARGET PUBLICATION-MAGNETISM-MCQs
  1. When a current carrying coil is suspended in. uniform magnetic inducti...

    Text Solution

    |

  2. An arrangement of a long insulated wire wound in a closely packed heli...

    Text Solution

    |

  3. Suppose we wish to have a current carrying coil equivalent to a magnet...

    Text Solution

    |

  4. A torque of 25 N m acts on a current carrying coil of area 5 m^(2) and...

    Text Solution

    |

  5. The magnetic induction at a point distant 15 cm on the axis of a short...

    Text Solution

    |

  6. The magnetic moment of a bar magnet is equal to the moment of couple w...

    Text Solution

    |

  7. The torque acting on a magnet of magnetic moment 'M' placed in a unifo...

    Text Solution

    |

  8. The ratio of torque acting on a magnet of magnetic moment M' placed in...

    Text Solution

    |

  9. A bar magnet is placed inside a uniform magnetic field, What does in e...

    Text Solution

    |

  10. If the magnitude of torque is equal to the magnetic dipole moment and ...

    Text Solution

    |

  11. The study of earth's magnetic field is called as

    Text Solution

    |

  12. Which of the following is true about axis of earth's magnetic dipole a...

    Text Solution

    |

  13. The direction of earth's magnetic field at any place is specified in t...

    Text Solution

    |

  14. The angle between the magnetic meridian and geographical meridian is c...

    Text Solution

    |

  15. The angle between earth's magnetic field at a given place and the hori...

    Text Solution

    |

  16. The angle of dip at any place on earth's surface lies between

    Text Solution

    |

  17. At a given place let angle of dip be 30^(@) then the vertical componen...

    Text Solution

    |

  18. At a particular place, horizontal and vertical components of earth's m...

    Text Solution

    |

  19. The earth's magnetic field

    Text Solution

    |

  20. A vertical plane passing through the magnetic north and south pole of ...

    Text Solution

    |