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Analog Electronics

Analog Electronics
At the unity-gain frequency, the open-loop voltage gain is

  very large
  zero.
  AV(mid).
  1.

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Analog Electronics
The input stage of an op amp is usually a

  swamped amplifier.
  class B push-pull amplifier.
  differential amp.
  CE amplifier.

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Analog Electronics
For a diode, reverse recovery time is defined as the time between the instant diode current becomes zero and the instant reverse recovery current decays to

 15% of reverse peak current.
 10% of reverse peak current.
 0.
  25% of reverse peak current.

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Analog Electronics
A common - mode signal is applied to

  the non - inverting input.
  both inputs.
  the inverting input.
  the top of the tail resistor.

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

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

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Analog Electronics
Which impurity is added into semiconductor to increase its conductivity ?

 doping
 extrinsic
None of these
 intrinsic

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