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Analog Electronics

Analog Electronics
What is mean by the outermost orbit of an atom ?

 Valence orbit
 Conduction band
None of these
 Energy band

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Analog Electronics
Class AB operation is often used in power large signal) amplifiers in order to

Remove even harmonics
Get maximum efficiency
Reducing collector dissipation
Overcome a crossover distortion

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Analog Electronics
When the base resistor increases, the collector voltage will probably

 decrease.
  increase.
 stay the same.
All of these

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Analog Electronics
In a bipolar junction transistor the base region is made very thin so that

  base can be easily fabricated.
  electric field gradient in base is high.
  base can be easily biased.
  recombination in base region is minimum.

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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

0.75
0.5
0.25
1

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Analog Electronics
LC oscillators are used for produce a waveform with frequency ranging from

 100 KHz to 500 MHz
 1 KHz to 1 MHz
 1MHz to 500 MHz
 1MHz to 100 GHz

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