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Important Questions for "Oscillations":

[1]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. Explain the depletion layer in p-n junction diode with suitable diagram.
  3. Find out the expression for input impedance, output impedance, current gain, voltage gain and power gain in terms of h-parameters for CE amplifier.

[2]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. Explain the depletion layer in p-n junction diode with suitable diagram.
  3. Discuss the Fermi level in intrinsic and extrinsic semiconductors.

[3]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. What is Boolean Algebra? Write down its commutative, associative and distributive properties.
  3. Find out the expression for input impedance, output impedance, current gain, voltage gain and power gain in terms of h-parameters for CE amplifier.

[4]

  1. Barkhausen criterion for sustained oscillations states that A=1.
  2. What is the knee voltage for a silicon diode?
  3. RC coupling is used for voltage amplification.

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