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Analog Electronics

Analog Electronics
Which of the following is Pentavalent impurity?

 gallium
 indium
 boron
 antimony

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Analog Electronics
A JFET has disadvantage of

  having small gain-bandwidth product.
  having low input impedance.
  possessing positive temperature coefficient.
  being noisy.

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Analog Electronics
If the collector resistor is open, the collector voltage is

 high.
 unchanged.
  low.
 unknown.

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Analog Electronics
A transistor series voltage regulator is called emitter follower regulator because the emitter of the pass transistor follows the ________________________ voltage.

  collector.
  input.
  output.
  base.

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Analog Electronics
If the emitter resistor is open, the collector voltage is

  high.
 unchanged.
 unknown.
 low.

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Analog Electronics
The major advantage of a photo transistor as compared to a photo diode is its

 AC operation.
 durability.
  increased sensitivity.
 response to higher frequencies.

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MORE MCQ ON Analog Electronics

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