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Analog Electronics

Analog Electronics
What is the majority carriers of P type material ?

None of these
 Protons
 Electrons
 Holes

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Analog Electronics
The output voltage of an emitter follower is across the

 DC collector resistor.
 emitter diode.
  load resistor.
 emitter diode and external AC emitter resistance.

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Analog Electronics
Which is the pair of acceptor elements ?

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

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Analog Electronics
The expression for frequency of oscillations of a RC phase shift oscillator is

None of these
 f = 1 / (2π√R(C1 + C2))
 f = 1 / (2π√RC)
 f = 1 / (2π RC√6)

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Analog Electronics
The barrier potential across each silicon depletion layer is

 1 V.
  0.7 V.
 0 V.
 0.3 V.

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Analog Electronics
The opamp can amplify

  DC signals only.
  AC signals only.
  neither AC not DC signals.
  both AC and DC signals.

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