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Analog Electronics

Analog Electronics
Energy gap of conductor is

 8 eV.
 1 - 2 eV.
 0 eV.
 5 - 8 eV.

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Analog Electronics
When testing an npn transistor using an ohmmeter, the collector-emitter resistance will be low when

 the transistor is normal.
 the emitter is positive in respect to the collector.
  the transistor is defective.
 the collector is positive in respect to the emitter.

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Analog Electronics
What is true about the breakdown voltage in a zener diode?

  It decreases when electric current increases.
  It is approximately constant.
  It destroys the diode.
  It equals the electric current times the resistance.

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Analog Electronics
Which of the following amplifier circuit using junction transistor has the best gain?

Common base
Common emitter
All have the same gain
Common collector

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Analog Electronics
If (211)X = (152)8, then the value of base x is

 5
 7
 9
 6

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Analog Electronics
The collector characteristics of a common - emitter connected transistor may be used to find its

  input resistance.
  output resistance .
  voltage gain.
  base current.

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