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Analog Electronics

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

 GaAs
 Si
 Ge
 All the above

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Analog Electronics
The common - mode rejection ratio is

  very low.
  equal to the common-mode voltage gain.
  as high as possible.
  equal to the voltage gain.

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Analog Electronics
If a transistor operates at the middle of the load line, a decrease in the base resistance will move the Q point

 nowhere.
 off the load line.
 down.
  up.

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Analog Electronics
Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is

 1 V.
 a few tenths of a volt.
 supply voltage.
  0.

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Analog Electronics
The arrow direction in diode symbol indicates

  direction of hole flow.
  direction of electron flow.
  opposite to the direction of hole flow.
  none of these.

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Analog Electronics
An Op-Amp comparator circuit employs

 -ve feedback.
 no feedback.
 +ve feedback.
 both B and C.

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MORE MCQ ON Analog Electronics

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