The effect of increase in temperature on the number of elec…

Physics Semiconductor Electronics JEE Main 2023 MCQ (Single Correct)

The effect of increase in temperature on the number of electrons in conduction band (n e ) and resistance of a semiconductor will be as:

Both n e and resistance decrease

Both n e and resistance increase

n e increases, resistance decreases

n e decreases, resistance increases

Text Solution

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The correct answer is:

As temperature increases, more electron excite to conduction band and hence conductivity increases, therefore resistance decreases.

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