Physics > 2003 > 49
JAMB UTME
The major difference between a pure semi-conductor and a pure metal is that
A.
metals are harder than semiconductors
B.
while the resistance of metals decreases with temperature, the reverse is the case for semi-conductors
C.
the resistance of metals increases with temperature while for semiconductors, it is the reverse
D.
metals have forbidden gaps while semi-conductors have not
Answer: C
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