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Visvesvaraya Technological University VTU
**Specialization:
**Electrical Engineering**Offline Downloads:
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Page-1

- Basic Circuit Concepts - ( 3 - 4 )
- Kirchhoff's law - ( 5 - 10 )
- Mesh Analysis - ( 11 - 20 )
- Node Analysis - ( 21 - 37 )
- Star-delta Transformation - ( 38 - 61 )
- Norton's Theorem - ( 62 - 80 )
- Maximum power transfer theorem - ( 81 - 93 )
- Superposition Theorem - ( 94 - 94 )
- Superposition theorm - ( 95 - 102 )
- Reciprocity Theorem - ( 103 - 103 )
- Reciprocity theorem - ( 104 - 110 )
- Millman's Theorem - ( 111 - 112 )
- Millman's theorem - ( 113 - 120 )
- Initial Conditions In Network Elements - ( 121 - 132 )
- Laplace Transformation And Applications - ( 133 - 139 )
- Fuctional laplace transforms - ( 140 - 150 )
- Resonance Circuits - ( 151 - 215 )

Topic:

NETWORK ANALYSIS (15EC34)
Syllabus:Module -1
Basic Concepts: Practical sources, Source transformations, Network
reduction using Star – Delta transformation, Loop and node analysis With
linearly dependent and independent sources for DC and AC networks,
Concepts of super node and super mesh.
Module -2
Network Theorems: Superposition, Reciprocity, Millman‘s theorems,
Thevinin‘s and Norton‘s theorems, Maximum Power transfer theorem and
Millers Theorem.
Module -3
Transient behavior and initial conditions: Behavior of circuit elements
under switching condition and their Representation, evaluation of initial
and final conditions in RL, RC and RLC circuits for AC and DC excitations.
Laplace Transformation & Applications: Solution of networks, step, ramp
and impulse responses, waveform Synthesis.
Module -4
Resonant Circuits: Series and parallel resonance, frequency- response of
series and Parallel circuits, Q–Factor, Bandwidth.
Module -5
Two port network parameters: Definition of z, y, h and transmission
parameters, modeling with these parameters, relationship between
parameters sets.
1

Text Books:
1. M.E. Van Valkenberg (2000), “Network analysis”, Prentice Hall of India,
3rd edition, 2000, ISBN: 9780136110958.
2. Roy Choudhury, “Networks and systems”, 2nd edition, New Age
International Publications, 2006, ISBN: 9788122427677.
Reference Books:
1. Hayt, Kemmerly and Durbin “Engineering Circuit Analysis”, TMH 7th
Edition, 2010.
2. J. David Irwin /R. Mark Nelms, “Basic Engineering Circuit Analysis”, John
Wiley, 8th edition, 2006.
3. Charles K Alexander and Mathew N O Sadiku, “Fundamentals of Electric
Circuits”, Tata McGraw-Hill, 3rd Ed, 2009.
2

Module 1: Basic Circuit Concepts
Network: Any interconnection of network or circuit elements (R, L, C,
Voltage and Current sources).
Circuit: Interconnection of network or circuit elements in such a way that a
closed path is formed and an electric current flows in it.
Active Circuit elements deliver the energy to the network (Voltage and
Current sources)
Passive Circuit elements absorb the energy from the network (R, L and C).
Active elements:
Ideal Voltage Source is that energy source whose terminal voltage remains
constant regardless of the value of the terminal current that flows. Fig.1a
shows the representation of Ideal voltage source and Fig.1b, it’s V-I
characteristics.
a
b
Fig.1a: Ideal Voltage source Representation
Fig. 1b: V-I characteristics
Practical Voltage source: is that energy source whose terminal voltage
decreases with the increase in the current that flows through it. The
practical voltage source is represented by an ideal voltage source and a
series resistance called internal resistance. It is because of this resistance
there will be potential drop within the source and with the increase in
terminal current or load current, the drop across resistor increases, thus
3

reducing the terminal voltage. Fig.2a shows the representation of
practical voltage source and Fig.2b, it’s V-I characteristics.
a
b
Fig. 2a: Practical Current Source
Fig. 2b: V-I characteristics
Here, i1 = i - v1/R …… (2)
Dependent or Controlled Sources: These are the sources whose
voltage/current depends on voltage or current that appears at some other
location of the network. We may observe 4 types of dependent sources.
i)
Voltage Controlled Voltage Source (VCVS)
ii)
Voltage Controlled Current Source (VCCS)
iii)
Current Controlled Voltage Source (CCVS)
iv)
Current Controlled Current Source (CCCS)
Fig.3a, 3b, 3c and 3d represent the above sources in the same order as listed.
v=kv
c
Fig. 3 a) VCVS
v=ki
b) VCCS
c) CCVS
i=k i
c
c
d) CCCS
4

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