Exam Details
| Subject | Basics Of Electrical Engineering | |
| Paper | ||
| Exam / Course | B.Tech. VIEP- Electrical Engineering III (BTCSVI/BTECVI/BTELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
Discuss the effect of temperature on resistance. Mention the materials having negative temperature coefficients. What is meant by negative temperature coefficient?
Explain the advantages of polyphase system over single phase system.
2.(a) Explain the advantages and disadvantages of Lead acid battery and Nickel cadmium battery.
Explain the construction and working of a lead acid battery.
3.(a) Determine the current through the 0·1 ohm resistor in the following figure, using Thevenin's theorem: <img src='./qimages/10884-3a.jpg'> State Kirchhoffs Current Law and Kirchhoffs Voltage Law (KVL).
4.(a) Define the terms MMF, magnetic flux and magnetic reluctance and establish the relation which holds between these quantities for a magnetic circuit.
Estimate the number of ampere turns necessary to produce a flux of 1,00,000 lines around an iron ring of 6 cm^2 cross-section and 20 cm mean diameter having an air-gap 2 mm wide across it. Permeability of iron may be taken as 1200. Neglect the leakage flux outside the 2 mm air-gap.
5.(a) Write a short note on star-delta connections in a 3-phase supply and their inter-relationship.
Explain the Fleming's Right and Left hand rules.
6.(a) Explain the following terms as applied to A.C. circuits Impedance
(ii) Power factor
(iii) Phase angle Derive the relationship between the voltage and current for a purely capacitive circuit. Also show that the average power consumed by the circuit is zero.
7. Write short notes on any two of the following:
Rise and decay of current in RC circuit Generation of 3-phase voltages Resonance in series RLC circuit Series and parallel connections of batteries
Explain the advantages of polyphase system over single phase system.
2.(a) Explain the advantages and disadvantages of Lead acid battery and Nickel cadmium battery.
Explain the construction and working of a lead acid battery.
3.(a) Determine the current through the 0·1 ohm resistor in the following figure, using Thevenin's theorem: <img src='./qimages/10884-3a.jpg'> State Kirchhoffs Current Law and Kirchhoffs Voltage Law (KVL).
4.(a) Define the terms MMF, magnetic flux and magnetic reluctance and establish the relation which holds between these quantities for a magnetic circuit.
Estimate the number of ampere turns necessary to produce a flux of 1,00,000 lines around an iron ring of 6 cm^2 cross-section and 20 cm mean diameter having an air-gap 2 mm wide across it. Permeability of iron may be taken as 1200. Neglect the leakage flux outside the 2 mm air-gap.
5.(a) Write a short note on star-delta connections in a 3-phase supply and their inter-relationship.
Explain the Fleming's Right and Left hand rules.
6.(a) Explain the following terms as applied to A.C. circuits Impedance
(ii) Power factor
(iii) Phase angle Derive the relationship between the voltage and current for a purely capacitive circuit. Also show that the average power consumed by the circuit is zero.
7. Write short notes on any two of the following:
Rise and decay of current in RC circuit Generation of 3-phase voltages Resonance in series RLC circuit Series and parallel connections of batteries
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)
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- 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)
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- 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)
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- School of Performing Arts and Visual Arts(SOPVA)
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Subjects
- Active Filter Design
- Advanced Control System
- Advanced Power Electronics
- Applied Electromagnetics
- Basics Of Electrical Engineering
- Computer Process Control
- Control System
- Digital Electronics
- Electric Energy Utilization
- Electrical And Electronics Engineering Materials
- Electrical Instrumentation
- Electrical Machine - I
- Electrical Machines - Ii
- Electrical Machines And Electronics
- Electrical Measurements And Measuring Instruments
- Electro Mechanical Energy Conversion - I
- Electro-Mechanical Energy Conversion - Ii
- Electro-Mechanical Energy Conversion-Iii
- Electromagnetic Theory
- Energy Auditing And Analysis
- High Voltage Engineering
- Industrial Drives
- Micro Controllers
- Microprocessor And Applications
- Network Theory
- Power Quality Issues And Remedial Measures
- Power System
- Power System - I
- Stochastic Control Systems
- Switchgear And Protection