Question

What does a classroom in which every student is seated represent in the description of a semiconductor at very low temperature?

Options

• Free electrons and holes are being created in large numbers.

• Electrons are tightly bound and conduction is minimal.

• One type of charge carrier is the majority carrier.

• The conduction band is full.

Answer 1

Seated students represent electrons that are not free to move around. Likewise, electrons are tightly bound at very low temperature, so conduction is minimal.