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Analog Electronics

Analog Electronics
The most commonly used semiconductor is

 Silicon
 Germanium
 Sulphur
 Carbon

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Analog Electronics
The voltage gain of a loaded differential amp is

  large than the unloaded voltage gain.
  impossible to determine.
  equal to RC / re.
  smaller than the unloaded voltage gain.

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Analog Electronics
The current gain of a bipolar transistor drops at high frequencies because of

High current effects in the base
Transistor capacitances
The early effect
Parasitic inductive elements

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Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 0.1 V.
 2.1 V.
 1.7 V.
 0.7 V.

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Analog Electronics
The base of an npn transistor is thin and

 metallic.
 heavily doped.
 doped by a pentavalent material.
  lightly doped.

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Analog Electronics
Most of the electrons in the base of an NPN transistor do not recombine because they

 must flow through the base.
 have a negative charge.
 flow out of the base.
  have a long lifetime.

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MORE MCQ ON Analog Electronics

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