Home
Class 12
PHYSICS
When an impurity is doped into an intrin...

When an impurity is doped into an intrinsic semiconductor, the conductivity of the semiconductor

A

increases

B

decreases

C

remains the same

D

becomes zero

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise EXERCISE - IB|7 Videos

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise EXERCISE - II|17 Videos

  • SEMICONDUCTOR DEVICES

    AAKASH SERIES|Exercise PROBLEMS|41 Videos

  • RAY OPTICS

    AAKASH SERIES|Exercise PROBLEMS ( LEVEL-II)|60 Videos

  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise PRACTICE EXERCISE|45 Videos

Similar Questions

Explore conceptually related problems

In a semiconductor,

A pure semiconductors

The electrical conductivity of semiconductor is

The conductivity of a semiconductor depends upon

How does the doping increase the conductivity of semiconductor ?

How does the doping increase the conductivity of semiconductor ?

Give two examples of intrinsic semiconductor?

What is the resistance of an intrinsic semiconductor at 0K?

which of the following statements are true about semiconductor ? (a)silicon doped with electron rich impurity is a p-type semiconductor (b)Silicon doped with an electrons rich impurity is an n-type semiconductor (c)Delocalised electrons increase the conductivity of doped silicon (d)An electron vacancy increase the conductivity of n- type semiconductor

Differentiate between intrinsic semiconductors and extrensic semiconductors.

AAKASH SERIES-SEMICONDUCTOR DEVICES-EXERCISE - IA
  1. An electric field us applied to a semiconductor.Let the number of char...

    Text Solution

    |

  2. Lets npand ne be the number of holes and conduction electrons in an in...

    Text Solution

    |

  3. When an impurity is doped into an intrinsic semiconductor, the conduct...

    Text Solution

    |

  4. Diffusion current in a p-n junction is greater than the drift current ...

    Text Solution

    |

  5. In an intrinsic semiconductor, the fermi energy level lies

    Text Solution

    |

  6. The mobility of free electron is greater than that of free holes becau...

    Text Solution

    |

  7. The value indicated by fermi-energy level in an intrinsic semiconducto...

    Text Solution

    |

  8. A semiconducting device is connected in a series in circuit with a bat...

    Text Solution

    |

  9. Pure semiconductor is known as

    Text Solution

    |

  10. A doped semiconductor is

    Text Solution

    |

  11. The potential barrier, in the depletion layer , is due to

    Text Solution

    |

  12. A P-type semiconductor can be formed by doping Si or Ge with

    Text Solution

    |

  13. An-type and P-type silicon can be obtained by doping pure silicon with

    Text Solution

    |

  14. In an n-type semiconductor, the fermi energy level lies

    Text Solution

    |

  15. The band diagrams of three semiconductors are given in the figure. Fro...

    Text Solution

    |

  16. The element that can be used as an acceptor impurity to doped silicon ...

    Text Solution

    |

  17. In extrinsic semiconductors

    Text Solution

    |

  18. The potential barrier at a P-n junction is due to the charges on eithe...

    Text Solution

    |

  19. If the two ends of a p-n junction are joined by a wire .

    Text Solution

    |

  20. The drift current in a p-n junction is

    Text Solution

    |