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Analog Electronics

Analog Electronics
The properties of JFET resemble those of

  thermionic valves.
  NPN transistors.
  PNP transistors.
  UJT.

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Analog Electronics
The input offset electric current is usually

  less than the input offset voltage.
  unimportant when a base resistor is used.
  less than the input bias current.
  equal to zero.

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Analog Electronics
An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is

1/5KΩ
1/11KΩ
5KΩ
11KΩ

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Analog Electronics
If temperature increases then conductivity of a semiconductor is ...................

 Decreases
 Increases
None of these
 Constant

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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.

  input.
  collector.
  output.
  base.

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Analog Electronics
If the zener diode in a zener regulator is connected with the wrong polarity, the load voltage will be closest to

  18 V.
  0.7 V.
  10 V.
  14 V.

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