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Analog Electronics

Analog Electronics
Semiconductor material is

 Pentavalent
 Bilateral
 Tetravalent
 Trivalent

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Analog Electronics
A electric current ratio of IC / IE is usually less than one and is called

  ω.
  α.
  β.
  θ.

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Analog Electronics
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is

98dB
51dB
102dB
49dB

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Analog Electronics
The majority carriers in the emitter of a PNP transistor are

 pentavalent atoms.
 free electrons.
 holes.
 trivalent atoms.

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Analog Electronics
When a reverse bias is applied to gate of JFET the depletion region width

  is wider near the source and tapers near the drain.
  is uniform in the channel.
  is wider near the drain and tapers near source.
None of these

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Analog Electronics
The barrier potential across each silicon depletion layer is

  0.7 V.
 0 V.
 1 V.
 0.3 V.

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