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Analog Electronics

Analog Electronics
The forbidden energy gap between valance band and conduction band in semiconductor material is about

 0 eV
 15 eV
None of these
 1eV

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Analog Electronics
What is the range of energy band gap of semiconductors ?

 0 ev
 10-15 ev
 14-15 ev
 1-3 ev

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Analog Electronics
The base of an npn transistor is thin and

 metallic.
  lightly doped.
 doped by a pentavalent material.
 heavily doped.

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Analog Electronics
When the JFET is no longer able to control the current, this point is called the

  saturated point.
  breakdown region.
  depletion region.
  pinch-off region.

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Analog Electronics
When a reverse bias is applied to a diode, it will

  increases the majority carrier an electric current greatly.
  raise the potential barrier.
  lower the potential barrier.
  none of these.

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Analog Electronics
If the emitter resistance increases, the collector voltage

 decreases.
 breaks down the transistor.
 stays the same.
  increases.

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