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Analog Electronics

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

 4
 3
 1
 2

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Analog Electronics
A D - MOSFET can operate in the

  enhancement - mode only.
  depletion - mode or enhancement - mode.
  low - impedance.
  depletion - mode only .

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Analog Electronics
The base-emitter voltage of the second approximation is

 0 V.
  0.7 V.
 0.3 V.
 1 V.

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

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

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Analog Electronics
The base - emitter voltage is usually

 equal to the base supply voltage.
  less than the base supply voltage.
 none of these.
 more than the base supply voltage.

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Analog Electronics
Which of following is not an essential element of a DC power supply?

  Voltage regulator.
  Rectifier.
  Filter.
  Voltage amplifier.

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