1.

By increasing the temperature, the specific resistance of a conductor and a semiconductor.

Answer»

increases for both
decreases for both
increases, decreases
decreases, increases

SOLUTION :increases, decreases
As the temperature of conductor increases, the RANDOM motion of IONS increases so the motion of electrons becomes more CONSTRAINED, so the specific resistance increases. When increasing the temperature of covalent bond BREAKS and form a larger number of holes electron hence resistance decreases.


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