Semiconductor Principles Questions and Answers

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Q41
What causes the depletion region?
  • A doping
  • B diffusion
  • C barrier potential
  • D ions
Answer: Option B
Q42
What is an energy gap?
  • A the space between two orbital shells
  • B the energy equal to the energy acquired by an electron passing a 1 V electric field
  • C the energy band in which electrons can move freely
  • D an energy level at which an electron can exist
Answer: Option A
Q43
Silicon atoms combine into an orderly pattern called a:
  • A covalent bond
  • B crystal
  • C semiconductor
  • D valence orbit
Answer: Option B
Q44
In "n" type material, majority carriers would be:
  • A holes
  • B dopants
  • C slower
  • D electrons
Answer: Option D
Q45
Elements with 1, 2, or 3 valence electrons usually make excellent:
  • A conductors
  • B semiconductors
  • C insulators
  • D neutral
Answer: Option A
Q46
A commonly used pentavalent material is:
  • A arsenic
  • B boron
  • C gallium
  • D neon
Answer: Option A
Q47
 Which material may also be considered a semiconductor element?
  • A carbon
  • B ceramic
  • C mica
  • D argon
Answer: Option A
Q48
In "p" type material, minority carriers would be:
  • A holes
  • B dopants
  • C slower
  • D electrons
Answer: Option D
Q49
What can a semiconductor sense?
  • A magnetism
  • B temperature
  • C pressure
  • D all of the above
Answer: Option D
Q50
When an electron jumps from the valence shell to the conduction band, it leaves a gap. What is this gap called?
  • A energy gap
  • B hole
  • C electron-hole pair
  • D recombination
Answer: Option B

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