Semiconductor Physics Quiz

What are the charge carriers in a semiconductor?

• Protons and neutrons

• Electrons and positrons

• Electrons in conduction band and holes in valence band

• Photons and electrons

What generates the net flow of current in a semiconductor?

• Charge carriers

• Diffusion

• Electric field

• Drift

What is the process called when charged particles move in a semiconductor?

• Conduction

• Transport

• Drift

• Diffusion

Which of the following is NOT a basic transport phenomenon in a semiconductor?

• Diffusion

• Transport

• Convection

• Drift

What is the foundation for determining the current-voltage characteristics of semiconductor devices?

• Diffusion current

• Drift current

• Transport phenomena

• Charge carriers

What is the unit of mobility for electrons and holes in a semiconductor?

• m/s

• V/s

• cm/s

• A/cm^2

What is the net movement of charge due to an electric field called?

• Transport

• Drift

• Conduction

• Diffusion

What is the measure of a semiconductor material's ability to allow current flow through it?

• Resistivity

• Conductivity

• Diffusion coefficient

• Mobility

What is the current component generated due to concentration gradient in a semiconductor?

• Drift current

• Conduction current

• Diffusion current

• Resistance current

What is the electron diffusion coefficient at room temperature approximately equal to?

• 8301 cm^2/s

• 215 cm^2/s

• 1000 cm^2/s

• 25.9 cm^2/s