Regarding a semiconductor which one of t

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Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Regarding a semiconductor which one of the following is wrong –

Options:

There are no free electrons at room temperature

There are no free electrons at 0K

The number of free electrons increases with rise of temperature

The charge carriers are electrons and holes

Correct Answer:

There are no free electrons at room temperature

Explanation:

At room temperature, few bonds breaks and electron hole pair generates inside the semiconductor.