Question of WBUT Analog circuit of 2008 4th sem ECE

hi my friends form 3rd june B.TECH exam of WBUT is start ,so i going to post the Question paper of 2008 of ECE 4th sem .i try to post the question paper before exam.so today i am posting the question of anlog circuit of 4th sem because the frist exam is analog circuit on 4th june.
the Question is as follows(objective question are not given)
QUESTION of 2008
GROUP-B
2. Draw and explain half wave rectifier.
3. compare between class A,class B,and class AB amplifier.
4. what is the advantages and disadvantages of feedback in amplifier?What are the type of feedback required for (i) voltage amplifier (ii) current amplifier?
5. Draw and explain the operation of Hartley oscillator.
6. What is clipper?with help of circuit diagram and wave forms,describe the operation of a positive and negative clipper.
GROUP-C
7 (a) Draw and explain briefly the circuit of single stage current series feedback amplifier . Mention effect of negative feedback on gain and bandwidth.(b) Write down the barkhausen criterion for sinusoidal oscillation.Obtain expression for output frequency and condition to sustain oscillation of a RC phase shift oscillator.
(c) What are the advantages of differential amplifier?
8 (a) a numerical problem form op-amp.
(b) Write down the criteria of good instrumentation amplifier. Draw the circuit of an instrumentation amplifier using a transducer bridge and explain its operation.
(C) Realize multiplier using logarithmic amplifier. Mention application of analog multiplier.
9 (a) Draw the circuit and explain voltage to current converter (Grounded load) .
(B)Explain the Op-Amp integrator circuit .
(c) What is voltage follower ?
10. (a) what is function of voltage regulator ?
(b) Give and explain the important parts of series regulated power supply using discrete component.
(c) Draw the function diagram of 723 regulator.
11.Write short notes on any three of the follwing.
(A) Push pull amplifier
(B) Wein bridge oscillator
(C) Bridge rectifier
(D) clamping circuit
(e) Logarithmic amplifier.
this is question of 2008
bast of luck for sem.