Hole is

A

an anti-particle of electron.

B

a vacancy created when an electron leaves a covalent bond.

C

absence of free electrons.

D

an artifically created particle.

Text Solution

Verified by Experts

The correct Answer is:
B
a vacancy created when an electron leaves a covalent bond.
Because, in the crystalline structure of semi-conductors, when covalent bond breaks due to thermal oscillations, empty space occuring in the bond by the departure of bound electron, behaves as if it is positively charged and has a tendency of attracting an electron is called a hole.
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS

    KUMAR PRAKASHAN|Exercise Section-C: NCERT Exemplar Solution (Multiple Choice Qustion (More than One Options))|8 Videos

  • SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS

    KUMAR PRAKASHAN|Exercise Section-C: NCERT Exemplar Solution (Very Short Answer Type Questions)|6 Videos

  • SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS

    KUMAR PRAKASHAN|Exercise Section-B : Numericals (Numerical From .DARPAN. Based On Textbook)|14 Videos

  • SAMPLE QUESTION PAPER

    KUMAR PRAKASHAN|Exercise PART-B SECTION-C|5 Videos

  • WAVE OPTICS

    KUMAR PRAKASHAN|Exercise SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)|239 Videos

Similar Questions

Explore conceptually related problems

Drift velocity of holes is ......

A hole is drilled in a copper sheet. The diameter of the hole is 4.24 " cm at " 27.0 ^(@) C . What is the change in the diameter of the hole when the sheet is heated to 227^(@) C ? Coefficient of Imear expansion of copper = 1.70 xx 10^(-5) K^(-1) .

A hole is drilled in a copper sheet. The diameter of the hole is 4.24 cm at 27.0^(@)C . What is the change in the diameter of the hole when the sheet is heated to 227^(@)C ? Coefficient of linear expansion of copper =1.70xx10^(-5)K^(-1) .

Ratio of number density of holes is (7)/(5) and ratio of their current is (7)/(4) in a semiconductor. The ratio of their drift velocity is …….

A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth (mass =5.98xx10^(24)kg ) have to be compresed to be a black hole?

Holes and electrons are …..

Explain the concept of the hole in the semiconductor.

How is the holes produces ?

A hole in a p-type semiconductor is ……. in a covalent bond.