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Analog Electronics

Analog Electronics
Which of the following is a semiconductors material ?

 Ge
 GaAs
 Si
 All the above

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Analog Electronics
In a p⁺n junction diode under reverse bias , the magnitude of electric field is maximum at

The edge of the depletion region on the p-side
The p⁺n junction
The center of the depletion region on the n-side
The edge of the depletion region on the n-side

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Analog Electronics
In a common emitter, unbypassed resister provides

current series feedback
negative voltage feedback
positive current feedback
voltage shunt feedback

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Analog Electronics
The base-emitter voltage of the second approximation is

 0 V.
  0.7 V.
 1 V.
 0.3 V.

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Analog Electronics
If a transistor operates at the middle of the load line, a decrease in the current gain will move the Q point

 up.
  down.
 nowhere.
 off the load line.

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Analog Electronics
When the drain saturation electric current is less than IDSS a JFET acts like a

  battery.
  resistor.
  BJT.
  current source.

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