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Analog Electronics

Analog Electronics
Silicon and Germanium are ________ elements.

 pentavalant
 trivalant
 tetravalant
 hexavalant

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Analog Electronics
The fact that there are many free electrons in a transistor emitter region means the emitter is

 undoped.
None of these
  heavily doped.
 lightly doped.

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Analog Electronics
A 10 V DC regulator power supply has a regulation of 0.005 %. The output voltage will vary within an envelope of __________________ milivolt.

  0.5.
  2.5.
  5.
  0.05.

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Analog Electronics
The properties of JFET resemble those of

  NPN transistors.
  UJT.
  PNP transistors.
  thermionic valves.

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Analog Electronics
When the current gain increases from 50 to 300 in an emitter-biased circuit, the collector current

 decreases by a factor of 6.
 increases by a factor of 6.
  remains almost the same.
 is zero.

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Analog Electronics
The output voltage of an emitter follower is across the

 DC collector resistor.
  load resistor.
 emitter diode.
 emitter diode and external AC emitter resistance.

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