Electron Holes Quiz

Definition of electron holes: What is an electron hole in a semiconductor?

• A location where an electron is present, creating a negative charge

• A type of subatomic particle with a positive charge

• A location where an electron is missing, creating a positive charge

• A region of a semiconductor with no charge

Definition of electron holes: How are electron holes created in a semiconductor?

• When an electron moves from its position in the crystal lattice, it leaves behind a positively charged hole.

• Electron holes are created by adding more electrons to the semiconductor.

• When an electron moves from its position in the crystal lattice, it leaves behind a negatively charged hole.

• Electron holes are created by removing protons from the semiconductor.

Formation of electron holes: Explain the process of hole formation in a semiconductor.

• Electron moving from conduction band to valence band creates a hole

• Electron moving from valence band to conduction band leaves behind a hole

• Holes are formed when protons move from valence band to conduction band

• Holes are formed when electrons move from valence band to another valence band

Formation of electron holes: What are the conditions required for the generation of electron holes?

• Heating the material and adding pressure

• Increasing the humidity of the environment

• Exposing the material to ultraviolet light

• Doping with impurities and applying a voltage

Behavior of electron holes in semiconductors: How do electron holes move in a semiconductor material?

• Electron holes move in a semiconductor material by migrating through the crystal lattice with a positive charge.

• Electron holes move in a semiconductor material by emitting light

• Electron holes move in a semiconductor material by repelling other electron holes

• Electron holes move in a semiconductor material by attracting negatively charged particles

Behavior of electron holes in semiconductors: What is the impact of temperature on the behavior of electron holes?

• The behavior of electron holes becomes more erratic and they are more likely to recombine with electrons as temperature increases.

• The behavior of electron holes remains unchanged regardless of temperature.

• The behavior of electron holes becomes more predictable and they are less likely to recombine with electrons as temperature increases.

• The behavior of electron holes becomes more erratic and they are less likely to recombine with electrons as temperature increases.

Role of electron holes in electronic devices: How are electron holes utilized in the operation of a p-n junction diode?

• Creating a barrier to the movement of positive charge carriers

• Causing an increase in resistance in the diode

• Generating an electric field that repels negative charge carriers

• Allowing the movement of positive charge carriers

Role of electron holes in electronic devices: Explain the role of electron holes in the functioning of a transistor.

• They are responsible for the physical structure of a transistor.

• They control the temperature of a transistor.

• They generate electromagnetic waves in a transistor.

• They allow the movement of charge carriers in a transistor.

Comparison of electron holes with electrons: How do the mobility of electron holes and electrons compare in a semiconductor?

• Mobility of electron holes is not affected by the semiconductor

• Mobility of electron holes is generally higher than that of electrons

• Mobility of electron holes is the same as that of electrons

• Mobility of electron holes is generally lower than that of electrons

Comparison of electron holes with electrons: What is the difference in charge between an electron hole and an electron?

• Negative

• Neutral

• Zero

• Positive