Concepts in Electric Circuits
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ConceptsinElectricCircuits
Dr.WasifNaeem
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Dr. Wasif Naeem
Concepts in Electric Circuits
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Concepts in Electric Circuits
© 2009 Dr. Wasif Naeem & Ventus Publishing ApS
ISBN 978-87-7681-499-1
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Contents
Concepts in Electric Circuits
Contents
Preface
8
1
Introduction
9
1.1
Contents of the Book
9
2
Circuit Elements and Sources
11
2.1
Introduction
11
2.2
Current
11
2.3
Voltage or Potential Difference
13
2.4
Circuit Loads
13
2.5
Sign Convention
15
2.6
Passive Circuit Elements
16
2.6.1
Resistor
16
2.6.2
Capacitor
17
2.6.3
Inductor
18
2.7
DC Sources
19
2.7.1
DC Voltage Source
19
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Contents
Concepts in Electric Circuits
2.7.2
DC Current Source
22
2.8
Power
23
2.9
Energy
25
3
Circuit Theorems
27
3.1
Introduction
27
3.2
Deinitions and Terminologies
27
3.3
Kirchoff’s Laws
28
3.3.1
Kirchoff’s Voltage Law (KVL)
28
3.3.2
Kirchoff’s Current Law (KCL)
32
3.4
Electric Circuits Analysis
34
3.4.1
Mesh Analysis
34
3.4.2
Nodal Analysis
36
3.5
Superposition Theorem
40
3.6
Thévenin’s Theorem
42
3.7
Norton’s Theorem
45
3.8
Source Transformation
46
3.9
Maximum Power Transfer Theorem
48
3.10
Additional Common Circuit Conigurations
48
49
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