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Analog Electronics

Analog Electronics
What is the range of energy band gap of semiconductors ?

 14-15 ev
 10-15 ev
 1-3 ev
 0 ev

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Analog Electronics
If a transistor operates at the middle of the load line, a decrease in the base resistance will move the Q point

 nowhere.
 off the load line.
  up.
 down.

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

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Analog Electronics
Silicon has

 none of above.
 eight valence electrons.
 two valence electrons.
 four valence electrons.

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Analog Electronics
The current gain of a BJT is

gm r0
gm / r0
gm rπ
gm /rπ

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Analog Electronics
In CB configuration, the output V-I characteristics of a transistor are drawn by taking

  VCE versus IC for constant IE.
  VCB versus IB for constant IE.
  VCB versus IC for constant IE.
  VCB versus IB for constant IE.

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