Home
Class 12
PHYSICS
The probbility of electrons to be found ...

The probbility of electrons to be found in the conduction band of an intrinsit semiconductor at a finile temperature

A

decrease exponentially with increasing band gap

B

increases exponentially with increasing band gap

C

decrease with increasing tempreture

D

is independent of the tempreture and the band gap

Text Solution

Verified by Experts

The correct Answer is:
A
NA
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS

    CP SINGH|Exercise Exercises|140 Videos

  • REFRACTION OF LIGHT BY PLANE SURFACES

    CP SINGH|Exercise Exercises|110 Videos

  • THERMAL AND ELECTRIC EFFECT oF CURRENT

    CP SINGH|Exercise Exercises|101 Videos

Similar Questions

Explore conceptually related problems

The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature

Assertion: The probability of electrons to be found in the conduction band of an intrinsic semiconductor at a finite temperature decrease exponentially with increasing band gap. Reason: It will be more difficult for the electron to cross over the large band gap while going from valence band to conduction band.

What will be the probability of electrons to be found in the conduction band of an intrinsic conductor at a finite temperature with increasing band gap?

The free electron concentration (n) in the conduction band of a semiconductor at a temperature T kelvin is described in terms of E_(g) and T as-

The ratio of number of holes and number of conduction electrons in an intrinsic semiconductor is

The conductivity of a semiconductor increases with increase in temperature because

The conductivity of a semiconductor increases with increase in temperature because

Is it difficult to make an intrinsic semiconductor? Name two factors on which the electrical conductivity of intrinsic semiconductor at a given temperature depends. How does the conductivity of a semiconductor change with the rise in its temperature?

How does the conductivity of a semiconductor change if its temperature is raised ?

CP SINGH-SEMICONDUCTORS-Exercises
  1. C and Si both have same lattice structure, having 4 bonding electrons ...

    Text Solution

    |

  2. The difference in the variation of resistance with temperature in a me...

    Text Solution

    |

  3. The probbility of electrons to be found in the conduction band of an i...

    Text Solution

    |

  4. In a semiconducting material the mobilities of electrons and holes are...

    Text Solution

    |

  5. The electrical conductivity of pure germanium can be increased by

    Text Solution

    |

  6. A semiconductor is doped with a donor impurity

    Text Solution

    |

  7. If N(P) and N(e) be the numbers of holes and conduction electrons in a...

    Text Solution

    |

  8. The impurity atoms with which pure silicon should be doped to make a p...

    Text Solution

    |

  9. The impurity atoms with which pure silicon may be droped to make it a ...

    Text Solution

    |

  10. Choose the correct option

    Text Solution

    |

  11. Majority carriers in a semiconductor are

    Text Solution

    |

  12. Intrinsic semiconductor is electrically neutral. Extrinsic semiconduct...

    Text Solution

    |

  13. Which of the following statements is not true?

    Text Solution

    |

  14. Which statement is correct?

    Text Solution

    |

  15. The valance of the impurity atom that is to be added to germanium cry...

    Text Solution

    |

  16. When N-type of semiconductor is heated

    Text Solution

    |

  17. A N-type silicon sample of width 4xx10^(-3)m, thickness and length 6xx...

    Text Solution

    |

  18. A semiconductor has an electron concentration of 8xx10^(13) per cm^(3)...

    Text Solution

    |

  19. A Ge specimen is dopped with Al. The concentration of acceptor atoms i...

    Text Solution

    |

  20. Pure Si at 500K has equal number of electron (n(e)) and hole (n(h)) co...

    Text Solution

    |