Question

Solve this:
Q.22. Choose the false statement from the following :-
(1) the resistivity of a semiconductor increases with increase in temperature.
(2) substances with energy gap of the order of 10 eV are insulators.
(3) in conductors the valence and conduction bands may over lap.
(4) the conductivity of a semiconductor increases with increases in temperature.

Answer 1

Dear Student,
The only false statement is option 1.
As with increasing temperature conductivity increases so resistivity decreases.
Regards