Conductors, Insulators and Semiconductors Quiz

Which of the following is a good conductor of electricity?

• Rubber

• Glass

• Copper

• Wood

Which material is commonly used as an insulator?

• Silver

• Plastic

• Iron

• Aluminum

What is the primary characteristic of a semiconductor?

• High electrical conductivity

• No electrical conductivity

• Conductivity between that of a conductor and an insulator

• None of the above

Which of the following materials is a semiconductor?

• Silicon

• Copper

• Rubber

• Glass

Which property is NOT typical of conductors?

• High thermal conductivity

• High electrical conductivity

• High resistance

• Low resistance

What happens to the resistance of a conductor as temperature increases?

• Increases

• Decreases

• Remains the same

• Becomes zero

Which of the following is an example of an insulator?

• Gold

• Silver

• Wood

• Copper

What is the main use of semiconductors in electronics?

• To conduct electricity perfectly

• To insulate electrical circuits

• To control the flow of current

• To generate heat

Which element is most commonly used in semiconductor devices?

• Gold

• Silicon

• Copper

• Iron

What is the effect of doping on a semiconductor?

• Increases its conductivity

• Decreases its conductivity

• Makes it an insulator

• Has no effect