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Important Questions for "Oscillations":

[1]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. What is Boolean Algebra? Write down its commutative, associative and distributive properties.
  3. Convert octal number (24) to binary equivalent.

[2]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. Explain the depletion layer in p-n junction diode with suitable diagram.
  3. Write a short note on emitter follower circuit.

[3]

  1. Derive the Barkhausen criterion for sustained oscillations.
  2. What is Field Effect Transistor (FET)? Why is it called unipolar transistor?
  3. Convert decimal (4097)10 to binary equivalent.

[4]

  1. Barkhausen criterion for sustained oscillations states that A=1.
  2. The impurity level in an extrinsic semiconductor is about 1 atom per 10^8 atoms.
  3. Which biasing method is independent of transistor beta?

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