Home
Class 12
PHYSICS
Non-conductors, whose polarization is ca...

Non-conductors, whose polarization is caused by an electric field, are known as

A

Semi-conductors

B

Super-conductors

C

Dielectrics

D

Resistive conductors

Text Solution

Verified by Experts

The correct Answer is:
C
Dielectric may not conduct electricity through it but an applying electric field, induced charges are produced on its faces.
Promotional Banner

Topper's Solved these Questions

  • Heat & Thermodynamics

    NDA PREVIOUS YEARS|Exercise Physics|64 Videos

Similar Questions

Explore conceptually related problems

What is a non-uniform electric field?

The electric field inside a conductor

Assertion: A current flows in a conductor only when there is an electric field within the conductor: Reason: The drift velocity of electron in presence of electric field decreases.

Dipole in Non Uniform Electric Field

A plate of thickness h made of uniform statically polarized dielectric is placed inside a capacitor whose parallel plates are interconnected by a conductor. The polarization of the dielectric is equal to P (Fig). The separation between the capacitor plates is d . Find teh strength and induction vectors for the electric field both inside and outside the plates.

Explain the cause of electric current in a conductor.

NDA PREVIOUS YEARS-ELECTRICITY & MAGNETISM -MCQ
  1. Which one of the following is the value of current I in the circuit sh...

    Text Solution

    |

  2. The force experienced by a unit positive test charge placed at a point...

    Text Solution

    |

  3. Non-conductors, whose polarization is caused by an electric field, are...

    Text Solution

    |

  4. The resistance of a Wire that must be placed parallel with a 120 resis...

    Text Solution

    |

  5. The variation of current (I) and voltage (V) is as shown in figure A. ...

    Text Solution

    |

  6. Net charge in a current-carrying conductor is

    Text Solution

    |

  7. Which one of the following is the resistance that must be placed paral...

    Text Solution

    |

  8. An electric iron of resistance 20 Omega takes a current of 5 A. Calcul...

    Text Solution

    |

  9. A house, served by a 220 V supply line, is protected by a 9A fuse. Wha...

    Text Solution

    |

  10. The effective resistance of three equal resistances, each of resistanc...

    Text Solution

    |

  11. The magnetic lines of force due to the bar magnet

    Text Solution

    |

  12. The specific resistance of a conducting wire depends upon

    Text Solution

    |

  13. Which one of the statement given below is not correct?

    Text Solution

    |

  14. How many sixty watt (60 W) bulbs may be safely used in a 240-V supply ...

    Text Solution

    |

  15. Magnetism of a bar magnet can be destroyed if it is (I) kept in the ...

    Text Solution

    |

  16. Capacity of a parallel plate condenser can be doubled by (I) doublin...

    Text Solution

    |

  17. If two conducting spheres are separately charged and then brought in c...

    Text Solution

    |

  18. Two pieces of metallic wire having equal lengths and equal volume plac...

    Text Solution

    |

  19. If a heater coil is cut into two equal parts and only one part is used...

    Text Solution

    |

  20. The direction of magnetic field at a point due to an infinitely long w...

    Text Solution

    |