Home
Class 12
PHYSICS
In a doped semiconductor, the impurity l...

In a doped semiconductor, the impurity level is 40 meV above the valence band. The semicoductor is

A

n-type

B

p-type

C

intrinsic

D

extrinsic

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section -C(Linked comprehension type question))|3 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE|Exercise Assignment (Section -A (Objective Type question (One option is correct))|50 Videos

  • SEMICONDUCTOR ELECTRONICS (MATERIAL, DEVICES AND SIMPLE CIRUITS )

    AAKASH INSTITUTE|Exercise Assignment SECTION - D (Assertion & reason type Question)|10 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE|Exercise Try Yourself|63 Videos

Similar Questions

Explore conceptually related problems

A doped semiconductor has impurity levels 32 meV below the conduction band. The semiconductor is -

In a p-type semiconductor the acceptor level is situated 60 m eV above the valence band. The maximum wavelength of light required to produce a hole will be [use hc =12400 eV Å] .

A doped semiconductor has impurity levels 40 me V below the conductor band. Is the material n-type or p-type? In a thermal collision, an amount kT of energy is given to the extra electron loosely bound to the impurity ion and this electron is just able to jump into the conduction band. Calculate the temperature T. Given k=8.62xx10^(-5) eV//K .

An n-type semiconductor has donor levels at 500 meV above the valence band, the frequnecy of light required to create a hole is nearly

A P -type semiconductor has acceptor levels 57 meV above the valence band. The maximum wavelength of light required to create a hole is (Planck's constant h=6.6xx10^(-34)J-s )

A doped semiconductor has impurity levels 20 meV below the conduction band. Is the material n-type or p-type? What is the wavelength of light so that the electron of impurity level is just able to jump into conduction band? Use h=6.63xx10^(-34)Js, c=3xx10^(8)m//s .

A doped semiconductor has impurity levels 30meV bleow the conduction band,(a)Is the material m-type or p-type? (b)In a thermal collision,and amount kT of energy is given to the extra electron loosely bound to the impurity ion and this electron is just able to jump into the conduction band. Calculate the temperature T.

In a good conductor, the energy levels in a valence band

A p type semiconductor has acceptor level 30 mev above the valence band what will be the maximum wavelength of light that can create a hole

AAKASH INSTITUTE-SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS-Assignment (Section -B (Objective type question (one option is correct))
  1. An n-type semiconductor has donor levels at 500 meV above the valence ...

    Text Solution

    |

  2. In a common emitter amplifier , when a signal of 40 mV is added to the...

    Text Solution

    |

  3. The output of the given logic gate is

    Text Solution

    |

  4. Two identical capacitors A and B are charged to the same potential V a...

    Text Solution

    |

  5. The relationship between alpha and beta is given by

    Text Solution

    |

  6. Two identical p-n junctions may be connected in series in which a batt...

    Text Solution

    |

  7. In a silicon transistor, a change of 7.89 mA in the emitter current pr...

    Text Solution

    |

  8. In a doped semiconductor, the impurity level is 40 meV above the valen...

    Text Solution

    |

  9. In the diagram, the input is across the terminals A and C and the outp...

    Text Solution

    |

  10. In the given figure, a transistor is connected in common emitter confi...

    Text Solution

    |

  11. A transistor is used in Common-emitter mode in an amplifier circuits. ...

    Text Solution

    |

  12. In the given circuit, calculate the ratio of currents through the batt...

    Text Solution

    |

  13. In a transistor the current amplification alpha is '0.9', when connect...

    Text Solution

    |

  14. A transistor is connected in common base configuration, the collector ...

    Text Solution

    |

  15. In the given circuit , the voltage across the base emitter junction is

    Text Solution

    |

  16. If the current amplification factor for a transistor connected in comm...

    Text Solution

    |

  17. In doped semiconductor one dopent atom is kept typically for how many ...

    Text Solution

    |

  18. In a p-n junction diode the value of drift current through depletion r...

    Text Solution

    |

  19. In the Boolean algebra bar(A).bar(B) equals

    Text Solution

    |

  20. In the adder circuits of two inputs

    Text Solution

    |