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Analog Electronics

Analog Electronics
In n type semiconductor elements of which group of periodic table is added as dopant

 group 4.
 group 3.
 group 5.
 group 2.

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Analog Electronics
Which material behave like perfect insulators at low temperatures & conductor at higher temperature ?

 Si
 Ge
 GaAs
 All the above

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Analog Electronics
In an NPN transistor, the majority carriers in the emitter are

 both.
 neither.
 holes.
  free electrons.

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Analog Electronics
An ideal voltage regulator has a voltage regulation of

  0.
  100.
  1.
  50.

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Analog Electronics
In a loaded zener regulator, which is the largest current?

  Series current.
None of these
  Load current.
  Zener current.

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Analog Electronics
The biasing circuit that gives best stability to Q point is

  emitter resistor biasing.
  feedback resistor biasing .
  potential divider biasing.
  base resistance biasing.

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