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Analog Electronics

Analog Electronics
At the unity-gain frequency, the open-loop voltage gain is

  AV(mid).
  zero.
  1.
  very large

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Analog Electronics
The extremely high input impedance of a MOSFET is primarily due to the

  absence of its channel.
  extremely small leakage electric current of its gate capacitor.
  negative gate-source voltage.
  depletion of electric current carriers.

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Analog Electronics
A LED produces light when

  unbiased.
  reverse biased.
None of these
  forward biased.

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Analog Electronics
In deriving ac equivalent circuit for an amplifier circuit we short circuit

All capacitors
All transistors
All resistors
All inductors

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Analog Electronics
If=0.98, Ico=6µA and Iβ=100µA for a transistor,then the value of Ic will be

2.3mA
4.6mA
5.2mA
3.2mA

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Analog Electronics
Ignoring the bulk resistance of the collector diode, the collector-emitter saturation voltage is

  0.
 1 V.
 supply voltage.
 a few tenths of a volt.

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