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  3. Physics
  4. This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: A pure semiconductor has negative temperature coefficient of resistance. Statement 2: On raising the temperature, more charge carriers are released into foe conduction band.

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Q. This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1: A pure semiconductor has negative temperature coefficient of resistance.
Statement 2: On raising the temperature, more charge carriers are released into foe conduction band.

AIEEEAIEEE 2012Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

Temperature coefficient of resistance is negative for pure semiconductor. And no. of charge carriers in conduction band increases with increase in temperature.