Important RGPV Question

EC-404 (Analog Circuits)

IV Sem, EC

UNIT-1 Feedback Amplifier & Oscillators

Q.1 Discuss the advantages and disadvantages of negative feedback amplifier in detail?

(RGPV June 2023)

Q.2 Explain with the help of mathematical expressions, how the negative feedback in amplifiers increases amplifier bandwidth and reduces distortion in amplifiers.

(RGPV June 2023)

Q.3 Describe the concept of feedback and their types with advantages.

(RGPV June 2020)

Q.4 What is the concept of negative feedback? Explain Hartley b oscillator.

(RGPV June 2020)

Q.5 What are the advantages and disadvantages to introduce negative feedback in amplifiers? Explain.

(RGPV Nov 2023)

Q.6 Explain in detail about Concept of feedback and their types with suitable examples.

(RGPV Nov 2023)

Q.7 Draw the basic circuit of RC-Phase Shift Oscillator and explain its operation. Also derive the expression for frequency of Oscillation.

(RGPV Nov 2023)

Q.8 Draw and explain the operation of Colpitt’s oscillator.

(RGPV Nov 2023)

Q.9 Explain dual input balanced output amplifier.

(RGPV June 2020)

Q.10 Define the following terms.

i) Input offset voltage

ii) Output offset voltage

iii) PSRR

iv) CMRR

(RGPV June 2020)

Q.11 With a neat diagram, explain the action of Hartley’s oscillators.

A phase shift oscillator uses 8 pF capacitors. Find the value of Resistor (R) to produce a frequency of 600 kHz.

(RGPV June 2022)

Q.12 Explain the concept of positive and negative feedback with suitable waveform? Discuss Barkhausen criterion.

(RGPV June 2022)

Q.13 Explain RC phase shift oscillator with diagram.

(RGPV June 2020)

Q.14 Write a short note Crystal oscillator

(RGPV June 2023)

Q.15 Write a short note on Wien Bridge Oscillator

(RGPV Nov 2023)

Q.16 Explain the concept of feedband and their types? Also discuss amplifier with negative feedback and its advantages.

(RGPV May 2019)

Q.17 Discuss about feedback topologies.

(RGPV May 2019)

 Q.18 Discuss the principle of Barkhausen criterion.

(RGPV May 2019)

 Q.19 Explain the principle working of RC phase shift Oscillator.

(RGPV May 2019)

UNIT – 2 Introduction to Integrated Circuits

Q.1 Explain the working principle of Wein bridge oscillator with neat circuit diagram.

(RGPV June 2023)

 Q.2 Describe in detail about LC type oscillators along with generalized analysis?

(RGPV June 2023)

 Q.3 What is an integrated circuit? Discuss the relative advantages and disadvantages of ICs over discrete assembly.

(RGPV June 2022)

 Q.4 Explain the Advantages of Integrated Circuits (ICs).

(RGPV Nov 2023)

 Q.5 Explain in detail about basic building components of IC.

(RGPV Nov 2023)

 Q.6 What is differential amplifier and explain any one type in detail?

(RGPV June 2020)

Q.7 Discuss about the following

i) Basic building components of ICs.

ii) Data sheets.

(RGPV June 2023)

 Q.8 What do you mean by IC. What are the characteristics of ICs and give its advantages.

(RGPV June 2023)

Q.9 Discuss the advantages and characteristic parameters of IC’s and its basic building components.

(RGPV May 2019)

 

UNIT – 3 Operational Amplifier & Characteristics of op-amp 

Q.1 Explain about the Single input Unbalanced output differential amplifier with neat sketch.

(RGPV June 2023)

 Q.2 Calculate the voltage gain of the following circuit:

(RGPV June 2022)

 Q.3 Explain the following parameters of an op-amp:

i) Input bias current

ii) Input offset current

iii) Input offset voltage

(RGPV Nov 2023)

 Q.4 Explain the following in detail:

i) CMRR

ii) Slew rate

(RGPV June 2023)

 Q.5 Write a short note on any two

i) Log/Antilog amplifier

ii) Schmitt Trigger

iii) AVC using Op-Amp.

(RGPV June 2023)

Q.6 Explain the principle working of Dual input balanced out put differential amplifier.

(RGPV May 2019)

 Q.7 Explain the following parameters of OPAMP

a) Input offset current

b) Thermal drift

c) Input offset voltage

d) Input bias current

e) Out put offset-voltage

f) CMRR

g) PSRR

(RGPV May 2019)

Q.8 Write a short note on CMRR.

(RGPV Nov 2023)

 

UNIT – 4 OP-AMP Application 

Q.1 Compare and contrast the characterization of an ideal Op-Amp and practical Op-Amp.

(RGPV June 2023)

 Q.2 Explain the following in detail:

i) Off-set voltage.

(RGPV June 2023)

 Q.3 With neat sketch explain the operation of Op-Amp as Integrator and differentiator.

(RGPV June 2023)

 Q.4 Draw the first order low pass Butterworth filter and obtain its gain and frequency response.

(RGPV June 2023)

 Q.5 Explain in brief Zero Crossing Detector.

(RGPV June 2022)

 Q.6 Discuss Input offset voltage, offset current, Input bias current, Output offset voltage.

(RGPV June 2022)

 Q.7 Explain in brief Butterworth 2nd order Low pass FILTER.

(RGPV June 2022)

 Q.8 Derive the gain of the inverting amplifier.

(RGPV June 2020)

 Q.9 Describe band reject filter and all pass filter.

(RGPV June 2020)

 Q.10 Discuss the Effect of variation in power supply voltage of an OP-AMP. Explain the importance of gain bandwidth product.

(RGPV June 2022)

 Q.11 Discuss the application of OP-AMP as Voltage-shunt feedback amplifier.

(RGPV June 2022)

 Q.12 Find the output voltage (Vou) for each of the following combinations:

(RGPV June 2022)

 Q.13 Discuss the operation of OP-AMP as integrator.

(RGPV June 2022)

 Q.14 Explain about the Dual input Unbalanced output differential amplifier.

(RGPV Nov 2023)

 Q.15 With neat sketch explain the operation of OP Amp as Integrator and differentiator.

(RGPV Nov 2023)

 Q.16 With a neat diagram explain the operation of instrumentation amplifier using Op-Amp and derive the necessary expression.

(RGPV Nov 2023)

 Q.17 Explain AGC (Automatic Gain Control) using Op-Amp.

(RGPV June 2020)

 Q.18 Write short note on:

a) VCO

b) Slew rate and its effect on OP-AMP

c) Dual input balanced output DA

(RGPV June 2022)

 Q.19 Write short notes on (any four)

a) Precision Rectifiers

b) Transient response of Op-Amp

c) Frequency limitation

d) Slew rate

e) Rectifier

(RGPV June 2020)

Q.20 Explain the principle of following op-amp application

a) Integrator

b) Instrumentation amplifier

c) Log amplifier

d) Weins bridge oscillator

(RGPV May 2019)

 

UNIT – 5 Timer 

Q.1 Explain the operations of Mono stable Multivibrator using 555 timers.

(RGPV June 2023)

 Q.2 What is the sample and hold circuit? Draw and explain the working of sample and hold circuit with suitable sketch.

(RGPV June 2023)

 Q.3 Differentiate Monostable, Bistable and Astable Multivibrator.

(RGPV June 2022)

 Q.4 Describe Monostable multivibrator using IC-555 timer.

(RGPV June 2020)

 Q.5 Explain shunt clipper with waveform.

(RGPV June 2020)

 Q.6 Explain voltage to current converter and current to voltage converter.

(RGPV June 2020)

 Q.7 Draw the circuit of Schmitt trigger using 555 timer and explain its operation.

(RGPV Nov 2023)

 Q.8 Draw the Astable multivibrator circuit diagram using 555 timer and explain its working

(RGPV Nov 2023)

 Q.9 Write a short note on any two:

i) Clipper and clampers circuits

ii) Zero Crossing Detector

iii) CMRR

iv) Wien Bridge Oscillator

(RGPV Nov 2023)

Q.10 Explain the working of Monostable Multivibrator using 555 timer.

(RGPV May 2019)

Q.11 Write short notes on Any two of the following

b) Triangular and Rectangular wave generator

c) Schmitt trigger

(RGPV May 2019)

UNIT – 6 Voltage Regulator

Q.1 Discuss the operation of Fixed and Adjustable Voltage Regulators.

(RGPV June 2022)

 Q.2 Derive an expression for the common-mode voltage gain of a differential amplifier.

(RGPV June 2022)

 Q.3  Compare Fixed and Adjustable voltage regulator.

(RGPV June 2020)

 Q.4 Write down the characteristics of Standard regulator IC’s in detail.

(RGPV June 2020)

 Q.5 Explain characteristics of standard regulator ICs such as linear regulator.

(RGPV Nov 2023)

 

Q.6 Explain the operation of Fixed and Adjustable Voltage Regulators. Give the advantages of adjustable voltage regulator over fixed voltage regulator?(RGPV Nov 2023)

 Q.7 Explain characteristics of standard regulator ICs such as linear regulator.

(RGPV June 2023)

Q.8 Explain about current to voltage and voltage to current converter.

(RGPV May 2019)

 Q.9 Explain about following regulators.

a) Fixed and adjustable voltage regulator

b) Switching regulator

c) Linear regulator

a) LC Oscillators

(RGPV May 2019)

 

— Best of Luck for Exam —