Analog Electronics
For an NPN transistor in normal bias

  only majority carriers cross the collector junction.
  the emitter junction has high resistance.
  Je is forward biased and Jc is reverse biased.
  only holes cross the collector junction.

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Analog Electronics
A Semiconductor has a

 Negative Temperature coefficient of resistance
 Positive Temperature coefficient of resistance
None of these
 Constant Temperature coefficient of resistance

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