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Analog Electronics

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

5.2mA
4.6mA
2.3mA
3.2mA

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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
In modern the MOSFET, the material used for the gate is

  epitaxially grown silicon.
  heavily doped poly crystalline silicon.
  high - purity silicon.
  high - purity silica.

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Analog Electronics
IGFET is a

  half - power device.
  linear device.
  3 / 2 power - low device .
  square - law device.

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Analog Electronics
The common-mode voltage gain is

None of these
  greater than the voltage gain.
  equal to the voltage gain.
  smaller than the voltage gain.

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Analog Electronics
In a nonlinear op-amp circuit, the

  opamp may saturate.
  feedback loop is never opened.
  opamp never saturates.
  output shape is the same as the input shape.

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