1.

(C10m(d) 10 m) The conductivity of a semiconductor with increase in temperature:(a) decreases(c) remains sameS unit nf electric cu) increases(d) may increase or decreaserromt:

Answer»

The gap between conduction band and valence band in small in semiconductor (fig) , therefore electrons from the valance bond can jump to the conduction band on increasing temperature.

Thus they become more conducting as the temperature increases



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