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Analog Electronics

Analog Electronics
Which process is used for adding impurity into a pure semiconductor material ?

 Insulating
 Conducting
None of these
 Doping

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Analog Electronics
When a junction diode is Reverse Biased then diode acts like .......................

 An open switch
 Short switch
 Close switch
None of these

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

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

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Analog Electronics
The per unit impedance of a synchorous machine is 0.242. If base voltage is increased by 1.1 times, then per unit value will be

  0.200.
 0.266.
 0.242.
 0.220.

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Analog Electronics
In a MOSFET, the polarity of the inversion layer is the same as that of the

  majority carries in the substrate.
  charge on the gate electrode.
  majority carries in the source .
  minority carriers in the drain .

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Analog Electronics
If the series resistance increases in an unloaded zener regulator, the zener current

  decreases.
  increases.
  equals the voltage divided by the resistance.
  stays the same.

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