Ozgur Ergul - Introduction to Electrical Circuit Analysis

This edition first published 2017

2017 John Wiley and Sons Ltd

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Library of Congress Cataloging-in-Publication data applied for

ISBN: 9781119284932

Cover design by Wiley

Cover image: (Circuit Board) ratmaner/Gettyimages; (Electronic Components)

DonNichols/Gettyimages; (Formulas) Bim/Gettyimages

For my wife Aya, three cats (Boncuk, Pepe, and Misket), and the dog, who all suffered during the writing of this book

• Ampere (A)
• Coulomb (C)
• Farad (F): C/V
• Henry (H): weber/A
• Hertz (Hz): 1/s
• Joule (J): N m kg /s
• kilo (k):
• meter (m)
• micro ():
• milli (m):
• Newton (N): kg m/s
• Second (s)
• Siemens (S): A/V
• Volt (V): J/C
• Volt-ampere (V A): J/s
• Watt (W): J/s

• Fractions: A A A
• Irrational numbers: A A A
• Approximation: A A
• Scientific notation: and
• Multiplication without sign:
• Number ranges:
• Limit of a number from left and right:

Since the first known electricity experiments more than 25 centuries ago by Thales of Miletus, who believed that there should be better ways than mythology to explain physical phenomena, humankind has worked hard to understand and use electricity in many beneficial ways. The last three centuries have seen rapid developments in understanding electricity and related concepts, leading to constantly accelerating technology advancements in the last several decades. Today, most of us simply cannot live without electricity, and it is almost ubiquitous in daily life. We are so attached to and dependent on electricity that there are even post-apocalyptic fiction movies and film series based on sudden electrical power blackouts. And they are terrifying.

Electricity is one of a few subjects with which we have a strange relationship. The more we use it, less we know about it. Electrical and electronic devices, where electricity is somehow used to produce beneficial outputs, are a closed book to most of us, until we open them (not a suggested activity!) and see that they contain incredibly small but highly intelligent parts. These parts, some of which once had huge dimensions and even filled entire rooms, are now so tiny that we are able to place literally billions of them (at the time of writing) in a smartphone microprocessor. One billion is a huge number; at a rate of one a second, it takes 31 years to count. And we are able to put these uncountable (OK, countable, but not feasibly so) numbers of components together and make them work in harmony for our enjoyment. Yet most of us know little about how they actually work.