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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Understanding
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Assertion: If the temperature of semiconductor is increases then its resistance decreases.
Reason: The energy gap between conduction band and valence band is small.
Reason: The energy gap between conduction band and valence band is small.
View answer and explanation
Correct option: A
Both assertion and reason are true reason is the correct explanation of assertion
Option A is correct because increasing the temperature of a semiconductor increases the number of charge carriers, thus decreasing its resistance, and this is due to the small energy gap.
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