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JEE MAIN 2023
31-01-23 S1
Question
The effect of increase in temperature on the number of electrons in conduction band $\left(n_e\right)$ and resistance of a semiconductor will be as:
Select the correct option:
A
Both $n_e$ and resistance decrease
B
Both $n_e$ and resistance increase
C
$n_e$ increases, resistance decreases
D
$n_e$ decreases, resistance increases
βœ“ Correct! Well done.
βœ— Incorrect. Try again or view the solution.
Solution
As temperature increases, more electron excite to conduction band and hence conductivity increases, therefore resistance decreases.
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