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Analog Electronics

Analog Electronics
Silicon and Germanium are ________ elements.

 trivalant
 pentavalant
 tetravalant
 hexavalant

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Analog Electronics
What is the most important fact about the collector current?

 It is small.
 It is measured in milliampere.
  It approximately equals the emitter current.
 It equals the base current divided by the current gain.

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Analog Electronics
Given (135)x + (144)x = (323)x what is the value of base x?

 6
 3
 5
 4

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

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Analog Electronics
The depletion region of a pn junction is one, that is depleted of

  velocity of the carriers.
  immobile charges.
  atoms.
  mobiles charges.

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Analog Electronics
The Barkhausen criterion for an oscillator

 The phase of a feedback signal with respect to input should be 0° or 360°
 Both A and C
 Loop gain should be unity
 Loop gain should be less than unity

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