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Analog Electronics

Analog Electronics
Large electric current flow of a BJT occurs

  in base.
  through emitter-collector
  in emitter.
  in collector.

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Analog Electronics
The transition capacitance of a reverse biased pn junction having uniform doping on both sides, varies with junction voltage ( VB ) as

  ( VB )- 1 / 2.
  1 / VB.
  ( VB )2.
  VB.

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Analog Electronics
If the base resistor is open, what is the collect current?

 10 mA.
  0 mA.
 1 mA.
 2 mA.

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Analog Electronics
An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed

795mV
39.5mV
79.5 mV
395mV

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Analog Electronics
The amount of time between the creation and disappearance of a free electrons is called

 bound electrons
 life time of the carriers
 recombination
 drift velocity

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Analog Electronics
Which of these is the best description of a zener diode?

  It is a constant electric current device.
  It is a constant voltage device.
  It works in the forward region.
  It is a rectifier diode.

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