Intrinsic Semiconductors Quiz
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Questions and Answers

What is an intrinsic semiconductor also known as?

  • Extrinsic semiconductor
  • Undoped semiconductor (correct)
  • Doped semiconductor
  • Impure semiconductor

How are the number of charge carriers determined in an intrinsic semiconductor?

  • By the type of dopants used
  • By the crystallographic defects
  • By the properties of the material itself (correct)
  • By the amount of impurities present

What is the relationship between the number of excited electrons and the number of holes in an intrinsic semiconductor?

  • n = 0
  • n > p
  • n < p
  • n = p (correct)

When can a doped semiconductor still be intrinsic?

<p>When doped with both donors and acceptors equally (C)</p> Signup and view all the answers

What can affect the electrical conductivity of chemically pure semiconductors?

<p>Crystallographic defects of technological origin (A)</p> Signup and view all the answers

What is the function of a p–n junction in a semiconductor device?

<p>Allow electric current to pass through the junction only in one direction (D)</p> Signup and view all the answers

How are p-type and n-type regions created in a semiconductor?

<p>By doping the semiconductor with different types of dopants (C)</p> Signup and view all the answers

What are p-type and n-type semiconductors named after?

<p>The excess of holes and excess of electrons, respectively (B)</p> Signup and view all the answers

What electronic devices are p–n junctions fundamental to?

<p>Diodes, transistors, solar cells, LEDs, and integrated circuits (C)</p> Signup and view all the answers

How is the junction of a p–n junction different from a metal–semiconductor junction?

<p>The p–n junction allows current flow in one direction, while the metal–semiconductor junction allows current flow in both directions (A)</p> Signup and view all the answers

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