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

Bihar BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits1 Mark
MCQ
In a semiconductor, which of the following statement is correct?
  • A
    At 0K, Si is a super conductor.
  • B
    In a p-type semiconductor the acceptor level lies near the conduction band.
  • C
    Each donor atom contributes one hole.
  • D
    p - n junction is electrically neutral.
✓

Answer

  1. p - n junction is electrically neutral.

Explanation:

Generally Si is a semiconductor. In p type semiconductor acceptor level lies near the valence band and each donor atom contribute one electron. p-n junction electrically neutral because total charge is zero.

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