Question 71: Semiconductors and Logic Gates

Question

The resistivity $$(\rho)$$ of semiconductor varies with temperature. Which of the following curve represents the correct behaviour :

Accepted Answer

A semiconductor start conduction more as the temperature increases. It means resistance decreases with increase in temperature. So if temperature increases, its resistivity decreases.
Also, $$
ho=\frac{m}{n e^2 	au}
$$
as temperature increases, $	au$ decreases but $n$ increases and $n$ is dominant over $	au$.
$	herefore$ Option (a) is correct.

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Semiconductors and Logic Gates

The resistivity $(\rho)$ of semiconductor varies with temperature. Which of the following curve represents the correct behaviour :

Choose the correct answer: