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Analog Electronics

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

  4.
  2.
  1.
  3.

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Analog Electronics
What is the range of energy band gap of semiconductors ?

 14-15 ev
 1-3 ev
 0 ev
 10-15 ev

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Analog Electronics
The Barkhausen criterion for an oscillator

 The phase of a feedback signal with respect to input should be 0° or 360°
 Both A and C
 Loop gain should be unity
 Loop gain should be less than unity

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

 Protons
 Holes
 Electrons
None of these

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Analog Electronics
The collector characteristics of a common - emitter connected transistor may be used to find its

  base current.
  input resistance.
  output resistance .
  voltage gain.

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Analog Electronics
Why holes are not created in a metal ?

 The forbidden band is missing
 The conduction band and valance band are overlapped
None of these
 Both 1 & 2

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