Choose the only false statement from the

CUET Preparation Today

Start Free Mocks

Home Questions MDWFXEA4GG

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Choose the only false statement from the following.

Options:

In conductors the valence and conduction bands may overlap.

Substances with energy gap of the order of 10 eV are insulators.

The resistivity of a semiconductor increases with increase in temperature.

The conductivity of a semiconductor increases with increase in temperature.

Correct Answer:

The resistivity of a semiconductor increases with increase in temperature.

Explanation:

Semiconductors have –ve temperature coefficient of resistivity.