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problem 1: What do you mean by the term Blocked conditions in the Astable Multi-vibrators?

problem 2: What are the benefits and drawbacks of the symmetrical and unsymmetrical triggering?

problem 3: What do you mean by the term Storage time in a transistor? How storage time can be decreased?

problem 4: Describe the Self Starting feature in the Stable multi-vibrator?

problem 5: If fT = 500 MHZ and hfe = 100 for a BJT, determine its fB.

problem 6: If hic = 1000, re = 9.5 ohm, hfe = 99, determine rb of the BJT?

problem 7: A BJT is found to contain fT = 500 MHZ, hfe = 100, rbb = 100ohm, rbe = 900 ohm and Cb’c = 5 pF. It is employed as a CE amplifier with Rs = 1 K ohm and RL = 500 ohm. Find out the amplifier gain and upper 3-db cut = off frequency.

problem 8: Why the response of amplifier doesn’t remain flat at all frequencies.

problem 9: A CE connected amplifier has Ccb = 5pF, Cbc = 12pF, hfe = 100, hie = 1.5 k ohm Find out the input capacitance to the circuit for the circuit collector resistance of 12 K ohm

problem 10: Why an astable multi-vibrator is as well termed as the square wave generator?

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M97550

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