Home
Class 12
PHYSICS
Assertion: A flexible wire loop of irre...

`Assertion:` A flexible wire loop of irregular shape carrying current when placed in a uniform external magnetic field acquires a circular shape.
`Reason:` For a given perimeter circular shape is having the greatest area.

A

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

B

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

C

'A' is true and 'R' is false

D

'A' is false and 'R' is false

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-II|79 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-III|49 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-IA|142 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise very Short answer type question|15 Videos

  • NUCLEAR PHYSICS

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE PRACTICE SHEET (ADVANCED) Integer Type Questions|3 Videos

Similar Questions

Explore conceptually related problems

Assertion A flexeble wire loop of irregular shape carrying current when placed in a uniform external magnetic field acquires a circular shape. Reason For a given perimeter circular shape is having the greatert area.

A non planar closed loop of arbitrary shape carryign a current I is placed in uniform magnetic field. The force acting on the loop

A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

A loop of Irregular shape made of flexible conducting wire carrying clockwise current is placed in uniform inward magnetic field, such that its plane is perpendicular to the field. Then the loop

A current -carrying loop of irregular shape is located in an external magnetic field. If the wire is flexible, why does it becomes circular?

A loop of irregular shape of conducting wire PORS (as shown in figure) placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular shape. The direction of induced current will be

A circular loop of wire is carring a current i (as shown in the figure). On applying a uniform magnetic field inward perpendicular to the plane of the loop, the loop

A wire frame of given shape, carrying current of 10 A is placed in uniform magnetic field 100 T directed into the plane of paper as shown in figure. The net force acting on frame is

A current carrying circular coil, suspended freely in a uniform external magnetic field orients to a position of stable equilibrium. In this state :

A wire shaped to a regular hexagon of side 2 cm carries a current of 2A . Find the magnetic field at the cetre of the hexagon.

AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IB
  1. A loosely wound helix made of stiff metal wire is mounted vertically w...

    Text Solution

    |

  2. A magnetic needls is kept in a non-unifrom magnetic field . It exper...

    Text Solution

    |

  3. Assertion: A flexible wire loop of irregular shape carrying current ...

    Text Solution

    |

  4. (A) : A current carrying circular loop, free to turn, when placed in a...

    Text Solution

    |

  5. Ampere's circuital law is given by

    Text Solution

    |

  6. Deduce the expression for the magnetic dipole moment of an electron or...

    Text Solution

    |

  7. (A) : The microscopic roots of magnetism can be traced back to intrins...

    Text Solution

    |

  8. (A) : The magnetic field at the centre of a circular coil carrying cur...

    Text Solution

    |

  9. A long solonoid carrying a current produces a magnetic field along its...

    Text Solution

    |

  10. (A) : The magnetic field at the centre of a circular coil carrying cur...

    Text Solution

    |

  11. Ratio of magnetic dipole moment to the angular momentum for hydrogen l...

    Text Solution

    |

  12. Assertion: When radius of circular loop carrying current is doubled, i...

    Text Solution

    |

  13. Assertion : A planar circular loop of area A and carrying current I is...

    Text Solution

    |

  14. Assertion : A charged particle can be accelerated in a cyclotron by th...

    Text Solution

    |

  15. Magnetic induction at a point due to a small element of current carryi...

    Text Solution

    |

  16. A current I flows along an inflinitely long straight thin walled tube....

    Text Solution

    |

  17. (A) : Ampere's law holds for steady currents in straight conductor whi...

    Text Solution

    |

  18. (A) : A spark occur between the poles of a switch when the switch is o...

    Text Solution

    |

  19. STATEMENT-1: In electric circuits, wires carrying currents in opposite...

    Text Solution

    |

  20. Assertion : Two parallel conducting wires carrying currents in opposit...

    Text Solution

    |