Home
Class 12
PHYSICS
In sample of pure silicon 10^(13) "atom"...

In sample of pure silicon `10^(13) "atom"//cm^(3)` is mixed of phosphorus. If all doner atoms are active then what will be resistivity at `20^(@)C` if mobility of electron is `1200 cm^(2)//"Volt"` sec :-

A

0.5209 ohm cm

B

5.209 ohm cm

C

52.09 ohm cm

D

520-9 ohm cm

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 2|32 Videos

  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise EXERCISE - 3|29 Videos

  • ELECTRONICS - SEMI CONDUCTOR

    MOTION|Exercise ADVANTAGES OF SEMICONDUCTOR DEVICES OVER VACCUM TUBES|3 Videos

  • ELECTROMAGNETISM

    MOTION|Exercise Exercise|136 Videos

  • ELECTROSTATICS

    MOTION|Exercise Exercise -3 Section (B) Previous Year Problems | JEE Main|30 Videos
MOTION-ELECTRONICS - SEMI CONDUCTOR-EXERCISE - 1
  1. The intrinsic semiconductor becomes an insulator at

    Text Solution

    |

  2. What will be conductivity of pure sillicon crystal at 300 K temp? if e...

    Text Solution

    |

  3. In sample of pure silicon 10^(13) "atom"//cm^(3) is mixed of phosphoru...

    Text Solution

    |

  4. Mobility of electron in N-type Ge is 5000 cm^(2)//"volt" sec and condu...

    Text Solution

    |

  5. Forbidden energy gap of Ge is 0.75eV, maximum wave length of incident ...

    Text Solution

    |

  6. Which value of potential barrier is in the range, for given PN junctio...

    Text Solution

    |

  7. In a p- n junction diode not connected to any circuit,

    Text Solution

    |

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

    Text Solution

    |

  9. The minority current in a p-n junction is :–

    Text Solution

    |

  10. The majority current in a p-n junction is :–

    Text Solution

    |

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

    Text Solution

    |

  12. A hole diffuses from the p-side to the n-side in a p-n junction.This m...

    Text Solution

    |

  13. For the given circuit shown in fig, to act as full wave rectifier :– a...

    Text Solution

    |

  14. In a ............... biased P-N Jn., the net flow holes is from N-regi...

    Text Solution

    |

  15. Two indentical P-N Jn. may be connected in series with a battery in th...

    Text Solution

    |

  16. Region which have no free electron and holes in P-N junction is

    Text Solution

    |

  17. A two volt battery forward biased and a diode. However, there is a dro...

    Text Solution

    |

  18. Which of the following diode is reverse biased

    Text Solution

    |

  19. A transistor is used in the common emitter mode as an amplifier then :...

    Text Solution

    |

  20. In a transistor,

    Text Solution

    |