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(C) For a conductor,as the temperature increases,the thermal vibrations of the lattice ions increase,which leads to more frequent collisions of free e

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increases,decreases.

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(C) For a conductor,as the temperature increases,the thermal vibrations of the lattice ions increase,which leads to more frequent collisions of free electrons. This results in an increase in the resistivity (specific resistance) of the conductor.For a semiconductor,as the temperature increases,more charge carriers (electrons and holes) are generated due to the breaking of covalent bonds. This increase in the number density of charge carriers significantly reduces the resistivity (specific resistance) of the semiconductor.Therefore,the specific resistance of a conductor increases and that of a semiconductor decreases.

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

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