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Analog Electronics

Analog Electronics
Which of the following is Pentavalent impurity?

 boron
 antimony
 gallium
 indium

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

 0 ev
 1-3 ev
 10-15 ev
 14-15 ev

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Analog Electronics
Silicon has

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

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Analog Electronics
The number of orbiting electrons in germanium atom are :

 28
 32
 42
 36

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Analog Electronics
Negative feedback in an amplifier

Increase frequency &phase distortion
Increases noise
Reduces bandwidth
Reduces gain

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Analog Electronics
A U shaped, opposite-polarity material built near a JFET-channel center is called the

  block.
  gate.
  heat sink.
  drain.

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