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ANALOG ELECTRONICS

Analog Electronics
Most of the electrons in the base of an NPN transistor do not recombine because they

 have a negative charge.
 flow out of the base.
  have a long lifetime.
 must flow through the base.

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Analog Electronics
The β of a transistor is the ratio of the

 base current to collector current.
 emitter current to collector current.
  collect current to base current.
 collect current to emitter current.

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Analog Electronics
Increasing the collector supply voltage will increase

None of these
 emitter current.
 collector current.
 base current.

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Analog Electronics
The fact that there are many free electrons in a transistor emitter region means the emitter is

 lightly doped.
None of these
  heavily doped.
 undoped.

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Analog Electronics
In a normally biased npn transistor, the electrons in the emitter have enough energy to overcome the barrier potential of the

 collector - base junction.
 recombination path.
 base - collector junction.
  base - emitter junction.

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