Home
Class 11
PHYSICS
The number of electrons flowing in a cur...

The number of electrons flowing in a current carrying circular coil per second having area of `2m^(2)` and magnetic moment of `8" A m"^(2)` is

A

`5 xx 10^(18)`

B

`2.5 xx 10^(18)`

C

`25 xx 10^(18)`

D

`6.25 xx 10^(18)`

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 number of electrons flowing in a current carrying circular coil per second having area 2m^2 and magnetic moment 8Am^2 is

The direction of magnetic moment of a current carrying circular coil is

Define magnetic dipole moment for a current carrying circular loop.

Define magnetic dipole moment of a current carrying coil.

A torque of 25 N m acts on a current carrying coil of area 5 m^(2) and magnetic moment 2 A m^(2) in a magnetic field of induction 2Wb//m^(2) . The angle between normal to coil and magnetic induction is 30^(@) . Then value of current is

The magnetic moment of a current (i) carrying circular coil of radius (r) and number of turns (n) varies as

The magnetic induction at the centre of a current carrying circular coil of radius 10cm is 5sqrt(5) times the magnetic induction at a point on its axis. The distance of the point from the centre of the coil in m 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

Define Magnetic dipole moment of a current carrying coil State its SI unit and dimension.

Derive an expression for magnetic induction at a point along axis of current carrying circular coil .

TARGET PUBLICATION-MAGNETISM-MCQs
  1. If at a given place the earth's magnetic inchretion B is 5 xx 10^(-4) ...

    Text Solution

    |

  2. The torque acting on a magnetie dipole of moment 5 A m^(2) when placed...

    Text Solution

    |

  3. The number of electrons flowing in a current carrying circular coil pe...

    Text Solution

    |

  4. The vector sum of magnetic moments of all electrons inside the atom is...

    Text Solution

    |

  5. Assertion: Magnetic moment of an atoms is due to both, the orbital mot...

    Text Solution

    |

  6. A small hole is made at the centre of the magnet then its magnetic mom...

    Text Solution

    |

  7. The current carrying loop behaves as magnetic dipole because,

    Text Solution

    |

  8. The number of small magnetic dipoles in a solenoid is proportional to

    Text Solution

    |

  9. A straight wire carring current I is turned into a circular loop. If t...

    Text Solution

    |

  10. The torque on a bar magnet due to the earth's magnetic field is maximu...

    Text Solution

    |

  11. Rate of charges of torque tau with deflection theta is maximum for a m...

    Text Solution

    |

  12. The pole strength of a bar magnet is 48 ampere-metre and the distance ...

    Text Solution

    |

  13. A bar magnet is held perpendicular to a uniform magnetic field. If the...

    Text Solution

    |

  14. If a needle is suspended at different places on earth then needle beco...

    Text Solution

    |

  15. The lines of force of earth's magnetic field will be perpendicular to ...

    Text Solution

    |

  16. A compas needle will show which of the following directions at the ear...

    Text Solution

    |

  17. A ship is to reach a place 10^@ south of west. In what direction shoul...

    Text Solution

    |

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

    Text Solution

    |

  19. Magnetic induction due to a short magnet at a point 100 mm from the ce...

    Text Solution

    |

  20. Two identical magnetic dipoles of magnetic moments 1*0Am^2 each are pl...

    Text Solution

    |