unit 4 pretest

unit 4 pretest

University

10 Qs

quiz-placeholder

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unit 4 pretest

unit 4 pretest

Assessment

Quiz

Engineering

University

Hard

Created by

Pranjal Jog

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Doping a semiconductor with impurity atoms:

  • a) Increases its conductivity.

  • b) Decreases its conductivity.

  • c) Does not affect its conductivity.

  • .

  • d) None of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A p-type semiconductor is formed when a pure semiconductor is doped with:

  • a) Pentavalent impurity.

  • b) Trivalent impurity.

  • c) Divalent impurity.

  • d) Monovalent impurity.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The energy gap between the valence band and the conduction band in an intrinsic semiconductor is:

  • a) Very small.

  • b) Very large.

  • c) Zero.

  • d) Depends on the temperature.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a forward-biased p-n junction diode, the majority charge carriers move:

  • a) From p-side to n-side.

  • b) From n-side to p-side.

  • c) Both ways.

  • d) None of the above.

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The process of adding impurities to a semiconductor to increase its conductivity is called ____________________.

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

A semiconductor doped with a pentavalent impurity is called an ____________________ semiconductor.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The reverse saturation current of a diode

  • a) Increases with increasing reverse bias voltage.

  • b) Decreases with increasing reverse bias voltage.

  • c) Remains constant with increasing reverse bias voltage.

  • d) None of the above

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