Question

In which range of temperature, freeze out point begins to occur?

(a) Higher range

(b) Lower range

(c) Middle range

(d) None

This question was addressed to me in examination.

The question is from Conductivity of a Semiconductor in section Conduction in Semiconductors of Electronic Devices & Circuits

Answer 1

Correct option is (b) Lower range

For explanation I would say: At lower range of temperature, the concentration and conductivity decreases with lowering of the temperature.