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Analog Electronics

Analog Electronics
The number of valence electrons in silicon atom are :

 2
 3
 4
 1

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Analog Electronics
What is an energy gap?

 Energy level at which an electron can exist
None of these
 Space between two orbital shells
 Energy band in which electrons can move freely

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Analog Electronics
The expression for frequency of oscillations of a RC phase shift oscillator is

 f = 1 / (2π√RC)
 f = 1 / (2π√R(C1 + C2))
None of these
 f = 1 / (2π RC√6)

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Analog Electronics
In a N-type semiconductor material holes are ......................

 Minority charge carriers
 Majority charge carriers
 Low charge carriers
 High charge carriers

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Analog Electronics
The knee voltage (cut in voltage) of silicon diode

  1.0 V.
  0.2 V.
  0.7 V.
  0.8 V.

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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 constant voltage device.
  It is a rectifier diode.

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