INTRODUCTION TO
ELECTRICAL &
ELECTRONICS ENGINEERING
Prerequisite
Physics and Mathematics (Pre-university level).
Hans John Dcruz
AP, EEE
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Section 1: Introduction to Electrical Engineering
Module 1 :
Elementary concepts of DC electric
circuits:
• Current and voltage division rules
• Kirchhoff's laws• Resistances in series and parallel;
• Star-delta conversion (resistive
networks
only-derivation
not
required)-problems.
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Analysis of DC electric
circuits:
• Mesh Analysis,
• Nodal Analysis.
Numerical problems.
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Module 2 Introduction to Electrical Machines:
Module 3 Power generation, transmission, distribution, and
protection
Section 2 :
Module 4, 5 and 6 : Introduction to of Electronics
Engineering
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Text Books
1.D P Kothari and I J Nagrath, “Basic Electrical Engineering”, Tata
McGraw Hill, 2010.
2.D C Kulshreshtha, “Basic Electrical Engineering”, Tata McGraw
Hill, 2010.
3.M.S.Sukhija and T.K.Nagsarkar, Basic Electrical and Electronics
Engineering, Oxford University Press, 2012.
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Reference Books
1. Del Toro V, “Electrical Engineering Fundamentals”, Pearson Education.
2. T. K. Nagsarkar, M. S. Sukhija, “Basic Electrical Engineering”, Oxford
Higher Education.
3. Hayt W H, Kemmerly J E, and Durbin S M, “Engineering Circuit Analysis”,
Tata McGraw-Hill
4. Hughes, “Electrical and Electronic Technology”, Pearson Education.
5. V. N. Mittle and Arvind Mittal, “Basic Electrical Engineering,” Second
Edition, McGraw Hill.
6. Parker and Smith, “Problems in Electrical Engineering”, CBS Publishers and
Distributors.
7. S. B. Lal Saksena and Kaustuv Dasgupta, “Fundamentals of Electrical
Engineering”, Cambridge University Press.
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Topic : Flow of current
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Conventional Flow of current
➢Benjamin Franklin in 1752 kite experiment.
➢Flow of current …..
➢From positive to negative.
➢Electron was discovered by J J Thompson in 1897.
➢Flow of electron….
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Flow of electron
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Flow of electron
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Current : Definition
An electric current is the movement of particles,
starting at the moment when an external voltage is
applied at one of the ends of the conductor.
That, in turn, generates an electric field on the
negatively charged electrons that are attracted to
the positive terminal of the external voltage.
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Voltage : Definition
The volt is the unit of electric potential
difference—electric potential difference is also
known as voltage.
The size of 1 volt is officially defined as the
potential difference between two points of a wire
carrying a current of 1 ampere when the power
dissipated in the wire is 1 watt.
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Resistance
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Resistance : Definition
Electrical resistance is defined as the
property of an electrical component to resist
the flow of electric current.
The unit of electrical resistance is ohm
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Ohm’s Law
➢ Ohm’s law states the relationship between electric
current and potential difference.
➢ “The current that flows through a conductor is
directly proportional to the voltage across it.”
➢ Ohm’s law only holds true if the provided temperature and
the other physical factors remain constant.
➢ “At constant temperature, the current that flows through
a conductor is directly proportional to the voltage across
it.”
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Power
➢ Electric power is the rate at which work is done or
energy is transformed into an electrical circuit.
Simply put, it is a measure of how much energy is
used in a span of time.
➢ P – watt
➢ P = VI
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Energy
➢ Total work done in an electric circuit is
electrical energy.
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EMF
➢ Electromotive force is defined as the electric potential
produced by either an electrochemical cell or by changing
the magnetic field.
➢ EMF is the commonly used acronym for electromotive
force.
➢ A generator or a battery is used for the conversion of
energy from one form to another.
➢ In these devices, one terminal becomes positively charged
while the other becomes negatively charged.
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