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  4. On increasing the temperature of semiconductor, its resistance :

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Q. On increasing the temperature of semiconductor, its resistance :

Rajasthan PMTRajasthan PMT 2004

Solution:

At room temperature, valence band and conduction band in a semiconductor are half filled.
Due to increase m temperature, the more electrons present in valence band acquire sufficient amount of energy and jump to conduction band. In this way, the resistance of semiconductor decreases.