Class 12 Exam  >  Class 12 Questions  >  Hole isa)An anti-particle of electronb)An art... Start Learning for Free
Hole is
  • a)
    An anti-particle of electron
  • b)
    An artifically created particle 
  • c)
    Absence of free electrons
  • d)
    A vacancy created when an electron leaves a covalent bond
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Hole isa)An anti-particle of electronb)An artifically created particle...
Actually hole is not anything we just asume that when an electron moves it creates a vacancy which we call a hole.
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Community Answer
Hole isa)An anti-particle of electronb)An artifically created particle...
Concept of holes in the semiconductor:
  1. When an electron is removed from a covalent bond, it leaves a vacancy behind. An electron from a neighbouring atom can move into this vacancy, leaving the neighbour with a vacancy. In this way the vacancy formed is called a hole (or cotter), and can travel through the material and serve as an additional current carriers.
  2. A hole is considered as a seat of positive charge, having magnitude of charge equal to that of an electron.
  3. Holes acts as a virtual charge, although there is no physical charge on it.
  4. Effective mass of hole is more than an electron.
  5. Mobility of hole is less than an electron.
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Hole isa)An anti-particle of electronb)An artifically created particlec)Absence of free electronsd)A vacancy created when an electron leaves a covalent bondCorrect answer is option 'D'. Can you explain this answer?
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