Semiconductor Fundamentals Quiz Practice Quiz…

Q: What is the key characteristic of a semiconductor in terms of resistivity?

Lower than conductors but higher than insulators — Semiconductors have resistivity between that of conductors and insulators.

Q: What happens to the resistance of a semiconductor when its temperature increases?

It decreases — Semiconductors have a negative temperature coefficient, meaning resistance decreases with increasing temperature.

Q: What type of charge do holes represent in a semiconductor?

Positive — Holes are considered positive charges in a semiconductor.

Q: What is the process of adding impurities to a semiconductor called?

Doping — Doping is the intentional introduction of impurities to alter the electrical properties of a semiconductor.

Q: Which type of impurity creates an N-type semiconductor?

Pentavalent — Pentavalent impurities donate electrons, creating an N-type semiconductor.

Q: In an N-type semiconductor, which are the majority carriers?

Electrons — In N-type semiconductors, electrons are the majority carriers.

Q: Which type of impurity creates a P-type semiconductor?

Trivalent — Trivalent impurities create holes, resulting in a P-type semiconductor.

Q: What is a major advantage of using Silicon in semiconductors?

Higher energy band gap — Silicon offers higher energy band gap compared to other materials.

Q: What happens to the conductivity of a semiconductor as temperature increases?

It increases — As temperature increases, electron-hole pair generation increases, leading to higher conductivity.

Q: What kind of bonds are formed between valence electrons in semiconductors?

Covalent bonds — Valence electrons in semiconductors form covalent bonds.

Question 1 of 10

What is the key characteristic of a semiconductor in terms of resistivity?

Semiconductors have resistivity between that of conductors and insulators.

Question 2 of 10

What happens to the resistance of a semiconductor when its temperature increases?

Semiconductors have a negative temperature coefficient, meaning resistance decreases with increasing temperature.

Question 3 of 10

What type of charge do holes represent in a semiconductor?

Holes are considered positive charges in a semiconductor.

Question 4 of 10

What is the process of adding impurities to a semiconductor called?

Doping is the intentional introduction of impurities to alter the electrical properties of a semiconductor.

Question 5 of 10

Which type of impurity creates an N-type semiconductor?

Pentavalent impurities donate electrons, creating an N-type semiconductor.

Question 6 of 10

In an N-type semiconductor, which are the majority carriers?

In N-type semiconductors, electrons are the majority carriers.

Question 7 of 10

Which type of impurity creates a P-type semiconductor?

Trivalent impurities create holes, resulting in a P-type semiconductor.

Question 8 of 10

What is a major advantage of using Silicon in semiconductors?

Silicon offers higher energy band gap compared to other materials.

Question 9 of 10

What happens to the conductivity of a semiconductor as temperature increases?

As temperature increases, electron-hole pair generation increases, leading to higher conductivity.

Question 10 of 10

What kind of bonds are formed between valence electrons in semiconductors?

Valence electrons in semiconductors form covalent bonds.

Semiconductor Fundamentals Quiz