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Analog Electronics

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

 1
 2
 4
 3

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Analog Electronics
Which process is used for adding impurity into a pure semiconductor material ?

 Conducting
None of these
 Insulating
 Doping

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Analog Electronics
In a normally biased npn transistor, the electrons in the emitter have enough energy to overcome the barrier potential of the

  base - emitter junction.
 collector - base junction.
 base - collector junction.
 recombination path.

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Analog Electronics
An n- channel JFET has IDSS=2mA,and Vp=-4v.Its transconductance gm=in mA/V)for an applied gate to source voltage VGS=-2v is

0.5
0.75
0.25
1

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

  Voltage regulator.
  Rectifier.
  Voltage amplifier.
  Filter.

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Analog Electronics
Reverse saturation electric current in a silicon pn junction diode nearly doubles for very

  10° rise in temperature.
  5° rise in temperature.
  2° rise in temperature.
  6° rise in temperature.

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