Moderate

A hole in a p-type semiconductor is

Correct answer: C. a missing electron

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

Explanation

In a p-type semiconductor, a hole is created when a valence electron from the semiconductor crystal lattice is excited to the conduction band, leaving behind an empty state in the valence band. This empty state behaves like a positively charged particle and is called a hole

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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.

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