Semiconductor Theory

31. When a pure semiconductor is heated, its resistance ___________

  1. Goes up
  2. Goes down
  3. Remains the same
  4. Can't say

Correct answer: (B)
Goes down

32. When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on ___________

  1. Junction capacitance
  2. Minority carriers
  3. Majority carriers
  4. None of the above

Correct answer: (B)
Minority carriers

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