Question

If the temperature of pure semiconductor increases, its resistivity:
a) decreases
b) increases
c) gradually increases
d) remains same

Answer 1

Answer:

It will be decreases

Explanation:

Decreess

this is the answer

Answer 2

Answer:-

resistivity decreases as temperature increases.

explanation :-

In an intrinsic semiconductor, there are thermally generated charge carriers i.e. electrons and holes which are very less in number at low temperatures. At room temperature or at high temperature, the number of thermally generated charge carriers increases. As a result, the conductivity of intrinsic semiconductors increases with temperature

conductivity ∝ 1 / resistivity

.

So, resistivity decreases as temperature increases.