DC circuits:
Ohm’s law and Kirchhoff’s laws, analysis of series, parallel and series-parallel circuits. Power and energy.
Electromagnetism:
Faraday’s Laws of Electromagnetic Induction, Lenz’s Law, Flemings rules, statically and dynamically induced EMF; concepts of self and mutual inductance. Coefficient of Coupling. Energy stored in magnetic field. Simple Numerical.
Single-phase AC circuits:
Generation of sinusoidal voltage, frequency of generated voltage, average value, RMS value, form factor and peak factor of sinusoidal voltage and currents. Phasor representation of alternating quantities. Analysis of R, L, C, R-L, R-C and R-L-C circuits with phasor diagrams, Real power, reactive power, apparent power, and Power factor. Series, Parallel and Series-Parallel circuits. Simple Numerical.
Three-phase AC circuits:
Necessity and advantage of 3-phase system. Generation of 3-phase power. Definition of phase sequence. Balanced supply and balanced load. Relationship between line and phase values of balanced star and delta connections. Power in balanced 3-phase circuits. Measurement of 3-phase power by 2-wattmeter method. Simple Numerical.
Measuring instruments:
construction and working principle of whetstone’s bridge, Kelvin’s double bridge, Megger, Maxwel’s bridge for inductance, Schering’s bridge for capacitance, concepts of current transformer and potential transformer. (Only balance equations and Excluding Vector diagram approach)
Domestic Wiring:
Requirements, Types of wiring: casing, capping. Two way and three way control of load.
Electricity bill:
Power rating of household appliances including air conditioners, PCs, laptops, printers, etc. Definition of “unit” used for consumption of electrical energy, two-part electricity tariff, calculation of electricity bill for domestic consumers.
Equipment Safety measures:
Working principle of Fuse and Miniature circuit breaker (MCB), merits and demerits.
Personal safety measures:
Electric Shock, Earthing and its types, Safety Precautions to avoid shock, and Residual Current Circuit Breaker (RCCB) and Earth Leakage Circuit Breaker (ELCB).
Course outcome (Course Skill Set)
At the end of the course the student will be able to:
CO1 Understand the concepts of DC circuits and Electromagnetism.
CO2 Understand the concepts of single phase and Three phase AC circuits.
CO3 Apply the basic Electrical laws to solve circuits.
CO4 Understand the concepts of measurements and measuring Instruments
CO5 Explain the concepts of domestic wiring, electricity billing, circuit protective devices and personal safety measures.
Assessment Details (both CIE and SEE)
Continuous Internal Evaluation (CIE):
The Teachers shall choose the types of assignments depending on the requirement of the course and plan to attain the Cos and POs. (to have a less stressed CIE, the portion of the syllabus should not be common /repeated for any of the methods of the CIE. Each method of CIE should have a different syllabus portion of the course). CIE methods /test question paper is designed to attain the different levels of Bloom’s taxonomy as per the outcome defined for the course. Three Tests each of 20 Marks;
Semester End Examination(SEE):
Theory SEE will be conducted by University as per the scheduled timetable, with common question papers for the subject (duration 03 hours)
Suggested Learning Resources:
Books (Title of the Book/Name of the author/Name of the publisher/Edition and Year) Text Books:
1. Basic Electrical Engineering by D C Kulshreshtha, Tata McGraw Hill, First Edition 2019.
2. A text book of Electrical Technology by B.L. Theraja, S Chand and Company, reprint edition 2014.
Reference Books:
1. Basic Electrical Engineering, D. P. Kothari and I. J. Nagrath, Tata McGraw Hill 4th edition, 2019.
2. Principles of Electrical Engineering & Electronics by V. K. Mehta, Rohit Mehta, S. Chand and Company Publications, 2nd edition, 2015.
3. Electrical Technology by E. Hughes, Pearson, 12th Edition, 2016.
4. Electrical and electronic measurements and instrumentation by A K Sawhney, Dhanapat Rai and Co. edition, January 2015