Semiconductor Quiz

What is the band gap in semiconductors?

• The temperature at which a semiconductor becomes conductive

• The amount of current that can flow through a semiconductor

• Energy difference between the valence band and the conduction band

• The distance between two neighboring bands in a semiconductor

What is the process of doping in semiconductors?

• Removing impurities from a semiconductor to decrease its electrical properties

• Introducing impurities into a semiconductor to change its electrical properties

• Adding water to a semiconductor to increase its conductivity

• Heating a semiconductor to change its color

Explain the working of a P-N junction in semiconductors.

• The P-N junction only allows for one direction of current flow in semiconductors

• The P-N junction increases resistance in semiconductors

• The P-N junction allows for the control of current flow in semiconductors by using the built-in electric field to regulate the movement of charge carriers.

• The P-N junction has no effect on current flow in semiconductors

Name two common semiconductor materials.

• Silicon and Germanium

• Carbon and Oxygen

• Aluminum and Copper

• Gold and Silver

What are the different types of semiconductor devices?

• Insulators, conductors, and superconductors

• Vacuum tubes, relays, and potentiometers

• Resistors, capacitors, and inductors

• Diodes, transistors, and integrated circuits

How does the band gap in semiconductors affect their conductivity?

• It increases the resistance of semiconductors

• It causes the electrons to move freely in semiconductors

• It has no effect on the conductivity of semiconductors

• It affects the conductivity by determining the energy required for electrons to move from the valence band to the conduction band.

What are the two types of doping in semiconductors?

• positive doping and negative doping

• x-type doping and y-type doping

• a-type doping and b-type doping

• n-type doping and p-type doping

Describe the characteristics of a P-N junction diode.

• A P-N junction diode has the ability to conduct current in both directions

• A P-N junction diode does not exhibit any bias behavior

• A P-N junction diode has the ability to conduct current in one direction, exhibits forward and reverse bias behavior, and is commonly used in rectification and switching circuits.

• A P-N junction diode is commonly used in amplification circuits

Explain the working principle of a semiconductor transistor.

• A semiconductor transistor works by using a small current to control a larger current.

• A semiconductor transistor works by converting sound waves into electrical signals.

• A semiconductor transistor works by emitting light when a current is applied.

• A semiconductor transistor works by using water to control the flow of electricity.