MU Analog Electronics - May 2015 Exam Question Paper

MU Instrumentation Engineering (Semester 3)
Analog Electronics
May 2015

Total marks: --
Total time: --

INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Attempt any four

1 (a) For the network given below find V₀₁ and V₀₂ consider practical diodes.

5 M

1 (b) Find S (Ico) and S(VBE) for the given circuit.

5 M

1 (c) Find I_DQ and V_DSQ for the given network.

5 M

1 (d) Draw the circuit diagram of a low pass filter circuit. Also draw its response plot.

5 M

1 (e) What is harmonic distortion? Write the equation for total harmonic distortion (THD).

5 M

2 (a) Find Vo for the circuit given below.

5 M

2 (b) Find Vo:

5 M

2 (c) Draw and explain instrumentation amplifier and logarithmic amplifier using Op Amps.

10 M

3 (a) Explain thermal runway in the case of BJT. How can we do compensation for the same.

10 M

3 (b) Find V_CE, V_CB, I_B and I_B for the following circuit.
Assume current gain =0.98

10 M

4 (a) Explain the working of a junction FET with its VI characteristics.

10 M

4 (b) Determine the lower cut off frequency for the network given below:-
I_DSS=8mA V_P=4V
r_d=∞Ω V_DD=20V 9m=2mS.

10 M

5 (a) Explain four types of controlled sources using opamps.

10 M

5 (b) Explain circuits for weighted summation, integrator and differentiator using op-amps.

10 M

6 (a) Write short note on Class A amplifier and Class B amplifier.

10 M

6 (b) Draw and explain a series voltage regulator.

10 M

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