The effect of increase in temperature |JEE Main 2023

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:

Both $n_e$ and resistance decrease

Both $n_e$ and resistance increase

$n_e$ increases, resistance decreases

$n_e$ decreases, resistance increases

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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

Question Tags

JEE Main

Physics

Easy

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