Home
Class 12
PHYSICS
In polar dielectrics , tiny electric dip...

In polar dielectrics , tiny electric dipoles are randomly oriented

A

in absence of electric field

B

in presence of electric field.

C

in presence of magnetic field.

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise COMPETITIVE THINKING|124 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

  • ELECTROSTATICS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos

  • ELECTROMAGNETIC INDUCTION

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos

  • GRAVITATION

    TARGET PUBLICATION|Exercise EVALUATION TEST|24 Videos

Similar Questions

Explore conceptually related problems

Assertion: When a dielectric material is kept inside some external electric field then the net electric field intensity inside the volume of dielectric is always less than external electric field intensity. Reason: In a normal state, polar molecules of dielectric material are randomly oriented and their net electric field remains zero. If we apply electric field on a dielectric material then the polar molecules experience torque and gets aligned along its direction.

Assertion: In the absence of an external electric field, the dipole moment per unit volume of a polar dicletric is zero. Reason : The dipoles of a polar diclectric are randomaly oriented.

How a non polar dielectric develops a net dipole moment when placed in electric field?

A: In a diamagnetic substance each atom has a non-zero dipole moment but due to thermal agitation the individual dipoles ramein randomly oriented and, therefore, the net dipole moment in any finite volume of the substance remains zero. R: On increasing the temperature the magnetism inside a perament magent increases.

Assertion(A): An applied field will polarize the polar dielectirc material Assertion(R ): In polar dielectric each molecular has a permanent diple moments but these are randomly oriented in the absence of an externally applied electric field.

What are polar dielectrics?

Electric Dipole moment is a vector quantify . If a compound contain more than one polar bond then , the net electric dipole moment is equal to vector sum of individual dipole moment . e.g., In H_(2)O mu = 1.84 D Out of following which has the highest dipole moment

TARGET PUBLICATION-ELECTROSTATICS-CRITICAL THINKING
  1. A sphere of radius 1 cm has potential of 10000V, then energy density n...

    Text Solution

    |

  2. A molecule in which centre of gravity of positive nuclei and revolving...

    Text Solution

    |

  3. In polar dielectrics , tiny electric dipoles are randomly oriented

    Text Solution

    |

  4. Choose the correct relation between polarisation and electric suscepti...

    Text Solution

    |

  5. A parallel plate capacitor is charged by connecting is plates to the t...

    Text Solution

    |

  6. A parallel plate capacitor is charged and the charging battery is then...

    Text Solution

    |

  7. A parallel plate capacitor is charged to a potential difference of 50V...

    Text Solution

    |

  8. Two identical parallel plate capacitors are connected in parallel comb...

    Text Solution

    |

  9. The distance between the circular plates of a parallel plate condenser...

    Text Solution

    |

  10. A parallel plate capacitor with air between the plates has a capacitan...

    Text Solution

    |

  11. A parallel plate capacitor is charged to a certain potential differenc...

    Text Solution

    |

  12. The capacity of a parallel plate condenser filled with material of die...

    Text Solution

    |

  13. Between the plates of a parallel plate condenser, a plate of thickness...

    Text Solution

    |

  14. The capacitance of a capacitor made by a thin metal foil is 2muF. If t...

    Text Solution

    |

  15. Between the plates of a parallel plate capacitor a dielectric plate in...

    Text Solution

    |

  16. If the potential difference across a capacitor is increased from 10V t...

    Text Solution

    |

  17. A conductor of capacity 10 muF is at potential of 10V. If the potentia...

    Text Solution

    |

  18. A capacitor 4 muF charged to 50 V is connected to another capacitor of...

    Text Solution

    |

  19. Two identical capacitors, have the same capacitance C. One of them is ...

    Text Solution

    |

  20. A capacitor of capacitance C is charged to potential difference V and ...

    Text Solution

    |