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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Understanding
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The conductivity of a semiconductor increases with increase in temperature because
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Correct option: D
Number density of current carriers increases, relaxation time decreases but effect of decrease in relaxation time is much less than increase in number of density
Option D is correct because the conductivity of a semiconductor increases with temperature due to a significant increase in the number density of current carriers, despite a decrease in relaxation time.
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