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Analog Electronics

Analog Electronics
The gate controls

  the drain current.
  the gate voltage.
  all of them.
  the width of the channel.

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Analog Electronics
Asource follower using an FET usually has a voltage gain which is

About -10
Exactly unity but negative
Greater than +100
Slightly less than unity but positive

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Analog Electronics
Secondary breakdown occures in

 None of these.
  BJT but not is MOSFET.
 Both BJT and MOSFET.
 MOSFET but not in BJT.

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Analog Electronics
Class B amplifier is biased

 at midpoint of load line.
 just at cut-off.
None of these
 nearly twice cut-off.

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Analog Electronics
An opamp has a voltage gain of 200,000. If the output voltage is 1 V, the input voltage is

  5 5 micro V.
  10 V.
  2 micro V.
  1 V.

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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
11KΩ
5KΩ
1/11KΩ

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MORE MCQ ON Analog Electronics

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