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Analog Electronics

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

None of these
 Doping
 Insulating
 Conducting

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Analog Electronics
Which of the following oscillators are used for low frequency (LF) applications

 RC oscillators
 Both LC and RC Oscillators
 None
 LC oscillators

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Analog Electronics
For a reverse biased pn junction, the electric current through the junction increases abruptly at

  breakdown voltage.
  0.2 eV.
  0 V.
  7.2 eV.

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Analog Electronics
In a JFET, the primary control on drain electric current is exerted by

  voltage drop across channel.
  size of depletion regions.
  channel resistance.
  gate reverse bias.

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Analog Electronics
MOSFET can be used as a

Voltage controlled capacitor
Voltage controlled inductors
Current controlled inductor
Current controlled capacitor

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Analog Electronics
Which of the following is trivalent impurity ?

None of these
 Boron
 Antimony
 Silicon

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