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Analog Electronics

Analog Electronics
Junction field effect transistors (JFET) contain how many diodes?

  4.
  3.
  2.
  1.

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Analog Electronics
An emitter follower has a voltage gain that is

 zero.
 greater than one.
  approximately equal to one.
 much less than one.

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Analog Electronics
A 3 - phase diode bridge rectifier is fed from a 400 V rms, 50 Hz, 3 phase AC source. If the load is purely resistive, then peak instantaneous output voltage is equal to

 400√ 2 V.
 400 / √ 3 V.
 400√ (2/3) V.
 400 V.

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Analog Electronics
Depletion region of a p-n junction is formed

 During Manufacturing
 During Reverse bias
 During Forward bias
 During Heating

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Analog Electronics
In an NPN transistor, the majority carriers in the emitter are

 neither.
  free electrons.
 holes.
 both.

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Analog Electronics
What will happen if doping of an intrinsic semiconductor with pentavalent impurity atom ?

 Fermi level fall
 Fermi level not change
 Fermi level raises
None of these

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