Semiconductor Doping and Types Quiz

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Questions and Answers

Which type of material is a semiconductor that has added trivalent impurities?

  • Intrinsic material
  • N-type material
  • Pentavalent material
  • P-type material (correct)

What is the characteristic of a trivalent element?

  • It is a good conductor
  • It acts as a majority carrier
  • It has four valence electrons
  • It has three valence electrons (correct)

Which element is mentioned as a pentavalent atom in the text?

  • Boron (B)
  • Silicon (Si)
  • Arsenic (As)
  • Antimony (Sb) (correct)

What does the process of doping involve in semiconductors?

<p>Adding impurity elements (B)</p> Signup and view all the answers

In which type of material do the conduction-band electrons outnumber the valence band holes?

<p>N-type material (C)</p> Signup and view all the answers

What is the role of valence-band holes in the material described?

<p>Majority carriers (D)</p> Signup and view all the answers

What happens when an electron crosses the junction into the P-type material?

<p>It gets trapped in a valence-band hole (B)</p> Signup and view all the answers

What is the purpose of applying a potential to a P-N junction in reverse bias?

<p>To increase resistance (A)</p> Signup and view all the answers

In which bias condition does a P-N junction act as a one-way conductor?

<p>Forward biased (D)</p> Signup and view all the answers

What effect does forward bias have on the resistance of a P-N junction?

<p>Decreases resistance (D)</p> Signup and view all the answers

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