Question

What is a semiconductor?

Options

• A material whose electrical conductivity lies between that of a conductor and an insulator.

• A material whose electrical conductivity is always higher than that of a conductor.

• A material with a full conduction band at 0 K.

• A material in which no charge carriers can be created.

Answer 1

A semiconductor has electrical conductivity between that of a conductor and an insulator. Its conductivity can change substantially with temperature.