Which of the following statements is incorrec | vedclass

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Question

(A) $1$. In semiconductors, as temperature increases, more electrons gain enough thermal energy to jump from the valence band to the conduction band.$

Vedclass · Accepted Answer

The resistivity of a semiconductor increases with temperature.

Vedclass · Answer

(A) $1$. In semiconductors, as temperature increases, more electrons gain enough thermal energy to jump from the valence band to the conduction band.$2$. This increase in the number of charge carriers leads to an increase in conductivity, which implies a decrease in resistivity.$3$. Therefore, the statement 'The resistivity of a semiconductor increases with temperature' is incorrect, as it actually decreases.$4$. Materials with a large energy gap (typically $ > 3 	ext{ eV}$), such as $10 	ext{ eV}$, are classified as insulators.$5$. In conductors, the valence and conduction bands overlap, allowing easy flow of electrons.$6$. Thus, option $A$ is the incorrect statement.

Which of the following statements is incorrect?

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