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Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
The concepts of holes is introduced based on:
  • ✓
    The notion that it is a whole lot easier to keep track of the missing particles in an "almost$-$full" band.
  • B
    The keeping track of the actual electrons in that band.
  • C
    The charge of holes
  • D
    None of the above
✓

Answer

Correct option: A.
The notion that it is a whole lot easier to keep track of the missing particles in an "almost$-$full" band.

The concept of holes was introduced so as to occupy the empty spaces left by the missing electron. For example, in a valence band, when an electron jumps from valence to conduction band, an empty space is created in valence band which is occupied by a hole.

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