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Analog Electronics

Analog Electronics
The feedback factor of a Wien bridge oscillator using Op-Amp is

 1/2
 1/4
 1
 1/3

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Analog Electronics
The fact that there are many free electrons in a transistor emitter region means the emitter is

 lightly doped.
  heavily doped.
 undoped.
None of these

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Analog Electronics
For emitter bias, the voltage at the emitter is 0.7 V less than the

 emitter voltage.
 collector voltage.
  base voltage.
 ground voltage.

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Analog Electronics
Which is the pair of acceptor elements ?

 Gallium and boron
 Antimony and indium
None of these
 Phosphorous and aluminium

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

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

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Analog Electronics
A D - MOSFET can operate in the

  depletion - mode only .
  depletion - mode or enhancement - mode.
  enhancement - mode only.
  low - impedance.

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