Question

With an increase in the temperature, the electrical conductivity of a semiconductor ______.

Options

• decreases.

• increases.

• does not change.

• first increases and then decreases.

Answer 1

With an increase in the temperature, the electrical conductivity of a semiconductor increases.

Explanation:

With increase in temperature, the number of electrons from the valence band can jump to the conduction band in semiconductor. Hence, the conductivity of a semiconductor increases.