Home
Class 12
PHYSICS
At room temperature, a P-type semiconduc...

At room temperature, a `P`-type semiconductors has

A

Large number of holes and few electrons

B

Large number of free electrons and few holes

C

Equal number of free electrons and holes

D

No electrons or holes

Text Solution

Verified by Experts

The correct Answer is:
A
In `P`- type semiconductor, holes are the majority charge carriers.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise Junction Diode|57 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise Diode In Circuits|40 Videos

  • SEMICONDUCTOR ELECTRONICS

    A2Z|Exercise EXERCISE|29 Videos

  • NUCLEAR PHYSICS

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • SOURCE AND EFFECT OF MAGNETIC FIELD

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

p-type semiconductor is

A 0K temperature, a p -type semiconductor

Knowledge Check

  • In a P -type semiconductor

    A
    Current is mainly carried by holes
    B
    Current is mainly carried by electrons
    C
    The material is always positively charged
    D
    Doping is done by pentavalent material

  • In P -type semiconductor, there is

    A
    An excess of one electron
    B
    Absence of one electron
    C
    A missing atom
    D
    A donor level

  • A hole in p-type semiconductor is

    A
    an excess electron
    B
    a missing electron
    C
    a missing atom
    D
    a donor level

    • Similar Questions

    Explore conceptually related problems

    A p-type semiconductor is

    A pure semiconductor germanium or silicon, free of every impurity is called intrinsic semiconductor. A room temperature, a pure semiconductor has a very small number of current carriers (electrons and holes). Hence, its conductivity is low. When the impurity atoms of valence five or three are doped in a pure semiconductor, we get repectively n-type ot p-type extrinsic semiconductor. In case of a doped semiconductor. n_(e)n_(h)=n_(i)^(2) , where n_(e) and n_(h) are the number density of electrons and holes respectively and n_(i) is the number density of intrinsic charge carriers in a pure semiconductor. The conductivity of extrinsic semiconductor is much higher than that of intrinsic semiconductor. (i) Name two materials to be doped in pure semiconductor of silicon to get p-type semiconductor n-type semiconductor. (ii) What do you learn from the above study?

    p-type and n-type semiconductors .

    In p-type semiconductor holes move in

    A hole in a P - type semiconductor is

    Home
    Profile