Home
Class 12
PHYSICS
A magnetic needls is kept in a non-unif...

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

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:
D
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

A magnetic needle is kept in a non uniform magnetic field . It experiences

A magnetic needle is kept in a non uniform magnetic field . It experiences

Statement-1 In the arrangement shown, the hoop carries a constant current. This hoop can remain stationary under the effect of magnetic field of the bar magnet Statement-2 When a magnetic dipole is placed in a non-uniform magnetic field. It experiences a force opposite to direction of external magnetic field at its centre

An electric dipole is kept in non-unifrom electric field. It experiences

A magnetic material is placed in a non-uniform magnetic field which is orienteiong z-axis having then force gradient =(dH)/(dz) , experienced by the material will be equal to

Assertion: When a magnetic dipole is placed in a non-uniform magnetic field, only a torque acts on the dipole. Reason: Force would also acts on dipole if magnetic field were uniform.

A magnetic needle is free to oscillate in a uniform magnetic field as shown in the figure. The magnetic moment of magnetic needle 7.2Am^(2) and moment of inertia I=6.5xx10^(-6)kgm^(2) . The number of oscillation performed in 5s are 10. Calculate the magnitude of magnetic field?

Assertion" When diamagnetic material is placed in a non-uniform magnetic Held, it tends to move from stronger to the weaker part of the magnetic field. Reason: Diamagnetic materials possess strong magnetism.

A paramagnetic material is kept in a magnetic field. The field is increased till the magnetization becomes constant. If the temperature is now decreased, the magnetization.

In a uniform magnetic field, the field lines are :

AAKASH SERIES-MOVING CHARGES AND MAGNETISM-EXERCISE-IB
  1. Assertion : The magnetic field at the ends of a very long current carr...

    Text Solution

    |

  2. A loosely wound helix made of stiff metal wire is mounted vertically w...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  6. Ampere's circuital law is given by

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |