Home Physics Semiconductor Electronics Semiconductors If n e and v d be the number of electrons an…
Physics Semiconductor Electronics Semiconductors MCQ (Single Correct)

If n e and v d be the number of electrons and drift velocity in a semiconductor. When the temperature is increased

A
n e increases and v d decreases
B
n e decreases and v d increases
C
Both n e and v d increases
D
Both n e and v d decreases

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The correct answer is:
A

The conductivity of a semiconductor increases with temperature. Hence the number of free electrons will I also increase. But the drift velocity

Hence as is increased, is decreased.

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