Analog Electronics
In a properly biased NPN transistor most of the electrons from the emitter

  recombine with holes in the base .
  pass through the base to the collector.
  are stopped by the junction barrier.
  recombine in the emitter its self.

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Analog Electronics
A Semiconductor has a

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

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