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

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

ANSWER DOWNLOAD EXAMIANS APP

Analog Electronics
When a transistor is connected in common emitter mode, it with have

High input resistance and low output resistance
Low input resistance as well as output resistance
Negligible input resistance and high output resistance
Medium input resistance and high output resistance

ANSWER DOWNLOAD EXAMIANS APP