Exam Details
| Subject | Basics of Electrical Engineering | |
| Paper | ||
| Exam / Course | Diploma -VIEP-Electrical Engineering (DELVI)/Advanced Level Certificate Course In Electrical Engineering (ACELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 3
IOIEE-001 1
DECVI I DELVI I DCSVI I ACECVI I ACELVI I
ACCSVI
Term-End Examination
00396 June, 2016
OIEE-001 BASICS OF ELECTRICAL ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Attempt any five questions. Question no. 1 is compulsory.
Answer all the following questions 7x2=14
1. The specific resistance depends upon the nature of the material of the conductor only. The direction of current in an a.c. circuit is always in one direction. In a three-phase system, the emfs are 300 apart. The energy stored in an inductor is given by .!. LI2 Joules. The internal resistance of an ideal voltage source is infinite. The power factor of a purely inductive circuit is infinite. Phase angle between voltage and current is zero for a purely resistive circuit.
2. A coil consisting of 2,000 turns of copper 2wire has cross-sectional area of 0.8 mm. The mean length per turn is 20 cm and the resistivity of copper is 2x10^-8 Ohm-m at normal working temperature. Calculate the resistance of the coil, and
(ii) the power dissipated, when the coil is connected across a 110 V d.c. supply. 8
State and explain Ohm's law. What are its limitations? 6
3. Explain the construction, working and application of any type of cell. 8
Compare Primary and Secondary cells. 6
4. Find the current in the 15 ohm resistor,
(ii) voltage across the 18 ohm resistor, and
(iii) the power dissipated in the 7 ohm resistor of the circuit given below 8
<img src='./qimages/12681-4a.jpg'>
State and explain the following: 6 KCL
(ii) KVL
5. Deduce the analogy between magnetic and electric circuits. What are the major differences between them? 8
Write a short note on Lenz's law. 6
6. Explain the following terms as applied to an a.c. circuit 6 Admittance
(ii) Conductance
(iii) Susceptance
A coil takes 2.5 when connected across a 200 50 Hz main. The power consumed by the coil is found to be 400 W. Find the inductance and power factor of the coil. 8
7. Write short notes on any four of the following 4x3 Parallel Resonance Self Induction Power Factor RMS Value Balanced System with respect to 3-phase Form Factor
IOIEE-001 1
DECVI I DELVI I DCSVI I ACECVI I ACELVI I
ACCSVI
Term-End Examination
00396 June, 2016
OIEE-001 BASICS OF ELECTRICAL ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Attempt any five questions. Question no. 1 is compulsory.
Answer all the following questions 7x2=14
1. The specific resistance depends upon the nature of the material of the conductor only. The direction of current in an a.c. circuit is always in one direction. In a three-phase system, the emfs are 300 apart. The energy stored in an inductor is given by .!. LI2 Joules. The internal resistance of an ideal voltage source is infinite. The power factor of a purely inductive circuit is infinite. Phase angle between voltage and current is zero for a purely resistive circuit.
2. A coil consisting of 2,000 turns of copper 2wire has cross-sectional area of 0.8 mm. The mean length per turn is 20 cm and the resistivity of copper is 2x10^-8 Ohm-m at normal working temperature. Calculate the resistance of the coil, and
(ii) the power dissipated, when the coil is connected across a 110 V d.c. supply. 8
State and explain Ohm's law. What are its limitations? 6
3. Explain the construction, working and application of any type of cell. 8
Compare Primary and Secondary cells. 6
4. Find the current in the 15 ohm resistor,
(ii) voltage across the 18 ohm resistor, and
(iii) the power dissipated in the 7 ohm resistor of the circuit given below 8
<img src='./qimages/12681-4a.jpg'>
State and explain the following: 6 KCL
(ii) KVL
5. Deduce the analogy between magnetic and electric circuits. What are the major differences between them? 8
Write a short note on Lenz's law. 6
6. Explain the following terms as applied to an a.c. circuit 6 Admittance
(ii) Conductance
(iii) Susceptance
A coil takes 2.5 when connected across a 200 50 Hz main. The power consumed by the coil is found to be 400 W. Find the inductance and power factor of the coil. 8
7. Write short notes on any four of the following 4x3 Parallel Resonance Self Induction Power Factor RMS Value Balanced System with respect to 3-phase Form Factor
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Subjects
- Basics of Electrical Engineering
- C - Programming
- Computer Applications In P.S.
- Control Systems
- Digital Control System
- Digital Control System Design
- Dynamics System Simulation
- Electrical Circuit Theory
- Electrical Engineering Material
- Electrical Installation and System
- E l e c t r i c a l M a c h i n e T h e o r y I I
- Electrical Machines-I
- Electrical Measurements And Instruments
- Electrical Power Transmission and Distribution
- Energy Audit
- Flexible Ac Transmission System
- Industrial Drives and Controls
- Mechatronics
- Power Generation System
- Power Plant Economics And Centering
- Power System Reliability
- Principles of Computer Architecture
- Special Electrical Machines
- Switchgear And Protection
- Utilization Of Electrical Engineering