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Analog Electronics

Analog Electronics
A silicon pn junction in forward condition has a voltage drop closer to

 2.1 V.
 1.7 V.
 0.7 V.
 0.1 V.

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Analog Electronics
Thermal runaway is not possible in FET because as the temperature of FET increases

The transconductance increases
None of these
The drain current increases
The mobility decreases

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Analog Electronics
Which of the following is expected to have highest input impedance?

  CE bipolar transistor.
  JEFT amplifier.
  MOSFET.
  Common collector bipolar transistor

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Analog Electronics
Silicon and Germanium are ________ elements.

 pentavalant
 trivalant
 tetravalant
 hexavalant

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Analog Electronics
The diffusion capacitance of a forward biased P+N junction diode with a steady electric current I depends on

  width of the depleted region.
  mean life time of the electrons.
  junction area.
  mean life time of the holes.

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Analog Electronics
The common-mode voltage gain is

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

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