Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

At 0K temperature, a p-type semiconductor –

Options:

does not have any charge carriers

has few holes and few free electrons

has few holes but no free electrons

has equal no. of holes and free electrons

Correct Answer:

has few holes but no free electrons

Explanation:

At 0 K temperature, a pure semiconductor behaves as an insulator, because it has a few holes in its valance band. But there is no free electron in this state.