First slide

Classification of Metals, semiconductors and insulators

Question

In semiconductors, at room temperature

Moderate

A

The valence band is partially empty and the conduction band is partially filled
B

The valence band is completely filled and the conduction band is partially filled
C

The valence band is completely filled
D

The conduction band is completely empty

Solution

At room temperature, few bonds breaks and electron hole pairs generate inside the semiconductor.

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