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Question
With an increase in the temperature, the electrical conductivity of a semiconductor ______.
Options
decreases.
increases.
does not change.
first increases and then decreases.
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Solution
With an increase in the temperature, the electrical conductivity of a semiconductor increases.
Explanation:
With increase in temperature, the number of electrons from the valence band can jump to the conduction band in semiconductor. Hence, the conductivity of a semiconductor increases.
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