Exam Details
| Subject | Analog Electronic Circuits | |
| Paper | ||
| Exam / Course | BTCVI / BTECVI / BTELVI | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
1. For the network shown in Figure determine re
Zi
Zo
Av
<br><br> <img src='./qimages/10957-1.jpg'>
2. Calculate the following for the Darlington emitter-follower circuit shown in Figure 2. Input Impedance if ri 5 k.ohms AC Current Gain Output Impedance AC Voltage Gain <img src='./qimages/10957-2.jpg'>
3.(a) Explain Multi-stage Frequency Effects. Assuming identical stages of amplifiers cascaded together, show that for the low-frequency region and the high-frequency region, the cut-off frequency of the multi-stage amplifier is given respectively by the expressions given below <img src='./qimages/10957-3a.jpg'> A two-stage amplifier has a first stage gain of 50 dB and a second stage gain of 20 dB. What is the overall gain of the amplifier in dB?
4.(a) Explain the operation of a Class-B push-pull amplifier with the help of a neatly labelled block diagram.
Prove that the maximum efficiency of a Class-B amplifier is 78·5%.
5. What are the advantages and disadvantages of tuned amplifiers With the help of a neatly labelled diagram, explain the operation of a single tuned amplifier giving its frequency response curve.
6. Explain the effect of negative feedback on the following: Input Impedance Output Impedance Gain Noise Frequency Response
7. Give the circuit diagram of a crystal-controlled oscillator using a crystal in series-feedback path. Derive an expression for its input impedance and the frequency of oscillation.
8. Give the internal block diagram of IC-555 timer and enlist the functions performed by each pin.
9. Explain the operation of an astable and a monostable multivibrator using IC-555 with the help of a neatly labelled circuit diagram.
10. Write short notes on any two of the following: Wein-Bridge Oscillator Double Tuned Amplifiers High-frequency Model for CE Configuration
Zi
Zo
Av
<br><br> <img src='./qimages/10957-1.jpg'>
2. Calculate the following for the Darlington emitter-follower circuit shown in Figure 2. Input Impedance if ri 5 k.ohms AC Current Gain Output Impedance AC Voltage Gain <img src='./qimages/10957-2.jpg'>
3.(a) Explain Multi-stage Frequency Effects. Assuming identical stages of amplifiers cascaded together, show that for the low-frequency region and the high-frequency region, the cut-off frequency of the multi-stage amplifier is given respectively by the expressions given below <img src='./qimages/10957-3a.jpg'> A two-stage amplifier has a first stage gain of 50 dB and a second stage gain of 20 dB. What is the overall gain of the amplifier in dB?
4.(a) Explain the operation of a Class-B push-pull amplifier with the help of a neatly labelled block diagram.
Prove that the maximum efficiency of a Class-B amplifier is 78·5%.
5. What are the advantages and disadvantages of tuned amplifiers With the help of a neatly labelled diagram, explain the operation of a single tuned amplifier giving its frequency response curve.
6. Explain the effect of negative feedback on the following: Input Impedance Output Impedance Gain Noise Frequency Response
7. Give the circuit diagram of a crystal-controlled oscillator using a crystal in series-feedback path. Derive an expression for its input impedance and the frequency of oscillation.
8. Give the internal block diagram of IC-555 timer and enlist the functions performed by each pin.
9. Explain the operation of an astable and a monostable multivibrator using IC-555 with the help of a neatly labelled circuit diagram.
10. Write short notes on any two of the following: Wein-Bridge Oscillator Double Tuned Amplifiers High-frequency Model for CE Configuration
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Advance Microprocessor And Architecture
- Analog and Mixed Mode VLSI Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas and Propagation
- B10-Informatics
- Basics Of Electronics Engineering
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Device Modelling For Circuit Simulation
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Electromagnetic Field Theory
- Electronic Measurement and Inst
- Electronic Switching Circuits
- Embedded System Design
- Information Theory And Coding
- Linear Integrated Circuits
- Microcontrollers
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Multirate Systems
- Optical Fiber Communication
- Power Electronics
- Satellite And Tv Engineering
- Signal And Systems
- Wireless Communication