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Elektrik makineleri dersini kapsayan geniş bir e-book...
Contents
Preface ix
SECTION 1 Basic Electrical and
Electronic Engineering Principles 1
1 Units associated with basic electrical
quantities 3
1.1 SI units 3
1.2 Charge 3
1.3 Force 4
1.4 Work 4
1.5 Power 4
1.6 Electrical potential and e.m.f. 5
1.7 Resistance and conductance 5
1.8 Electrical power and energy 6
1.9 Summary of terms, units and their
symbols 7
2 An introduction to electric circuits 9
2.1 Electrical/electronic system block
diagrams 9
2.2 Standard symbols for electrical
components 10
2.3 Electric current and quantity of
electricity 10
2.4 Potential difference and
resistance 12
2.5 Basic electrical measuring
instruments 12
2.6 Linear and non-linear devices 12
2.7 Ohm’s law 13
2.8 Multiples and sub-multiples 13
2.9 Conductors and insulators 14
2.10 Electrical power and energy 15
2.11 Main effects of electric
current 17
2.12 Fuses 18
3 Resistance variation 20
3.1 Resistance and resistivity 20
3.2 Temperature coefficient of
resistance 22
3.3 Resistor colour coding and ohmic
values 25
4 Chemical effects of electricity 29
4.1 Introduction 29
4.2 Electrolysis 29
4.3 Electroplating 30
4.4 The simple cell 30
4.5 Corrosion 31
4.6 E.m.f. and internal resistance of a
cell 31
4.7 Primary cells 34
4.8 Secondary cells 34
4.9 Cell capacity 35
Assignment 1 38
5 Series and parallel networks 39
5.1 Series circuits 39
5.2 Potential divider 40
5.3 Parallel networks 42
5.4 Current division 45
5.5 Wiring lamps in series and in
parallel 49
6 Capacitors and capacitance 52
6.1 Electrostatic field 52
6.2 Electric field strength 53
6.3 Capacitance 54
6.4 Capacitors 54
6.5 Electric flux density 55
6.6 Permittivity 55
6.7 The parallel plate capacitor 57
6.8 Capacitors connected in parallel
and series 59
6.9 Dielectric strength 62
6.10 Energy stored in capacitors 63
6.11 Practical types of capacitor 64
6.12 Discharging capacitors 66
7 Magnetic circuits 68
7.1 Magnetic fields 68
7.2 Magnetic flux and flux
density 69
7.3 Magnetomotive force and
magnetic field strength 70
7.4 Permeability and B–H curves 70
7.5 Reluctance 73
vi CONTENTS
7.6 Composite series magnetic
circuits 74
7.7 Comparison between electrical
and magnetic quantities 77

Index 377

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