The major difference between a pure semiconductor and a pure metal is that
-
A.
metals are harder than semiconductor -
B.
while resistance of metals decrease with temperature , the reverse is the case for semiconductor -
C.
the resistance of metals increases with temperature, while for semiconductors, it is the reverse -
D.
metals have forbidden gaps while semiconductors have not
Correct Answer: Option C
Explanation
Experiment shows that increase in temperature increases the resistance of a pure metal but decreases the resistance of pure semiconductor