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Analog Electronics

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

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

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Analog Electronics
The diffusion capacitance of a forward biased P+N junction diode with a steady electric current I depends on

  mean life time of the electrons.
  junction area.
  mean life time of the holes.
  width of the depleted region.

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Analog Electronics
The positive part of the output signal in a transistor circuit starts clipping, if Q point of the circuit moves

  toward the cutoff point.
  none of these.
  toward the saturation point.
  toward the center of the load line.

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Analog Electronics
If the emitter resistance increases, the collector voltage

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

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Analog Electronics
In deriving ac equivalent circuit for an amplifier circuit we short circuit

All resistors
All inductors
All transistors
All capacitors

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Analog Electronics
The most commonly used semiconductor is

 Sulphur
 Silicon
 Carbon
 Germanium

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