Static electricity is, for the most part, a nuisance. Electrical power is derived from either utilities or internal generators and is distributed through transformers to deliver usable voltage levels. Ppt basic electronics powerpoint presentation free to. Basic concepts of electricity basic concepts of electricity. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. Basic electrical engineering pdf free download links. Introduction to electrical engineering khan academy. You will find conventional flow notation followed by most electrical engineers, and illustrated in most engineering textbooks. As opposed to static electricity where charges gather and remain at rest, current electricity is dynamic, charges are always on the move. This form of electricity exists when charges are able to constantly flow. View basic concepts of electricity from engineerin 1220 at polytechnic university of the philippines. As a member, youll also get unlimited access to over 79,000 lessons in math, english, science, history, and more.
Kuphaldt fifth edition, last update october 18, 2006. The meaning of the voltage vab is the voltage at a. Voltage and current basic concepts of electricity electronics. At first, these concepts can be difficult to understand because we cannot see them. Earlier on,we discussed how electricity is generated at the power station. This power station may be many hundred miles kilometers from your home or hospital and this means that the electricity has to travel very far before reaching you. Electrical wiring of the distribution board with rcd, single phase, from energy meter to the main distribution board fuse board connection. As was previously mentioned, we need more than just a continuous path i.
Basic concepts and resistive circuits shahriar mirabbasi department of electrical and computer engineering university of british columbia. The objective is to provide the attendee with a coherent and functional grasp of the fundamental concepts of nmr and how they are used. Chapter 1 of the book,basic concepts of electrical engineering. Electron is the negatively charge component of an atom. Basic concepts, laws, and principles basic electrical. This module will cover the fundamentals of electricity in a practical way, and will not be complicated by. First, we need to understand what series and parallel circuits mean. Just like water flowing through the emptiness of a pipe, electrons are able to move within the empty space within. Concepts of voltage, current, resistance, continuity, and even mathematical treatments such as ohms law chapter 2 and kirchhoffs laws chapter 6 remain just as valid with either style of notation. Before i get into the use of ohms law, i want to introduce a few other circuitry concepts.
Electric current is one of the most basic concepts that exists within electrical and electronic science electric current is at the core of the science of electricity. Build an intuitive understanding of current and voltage, and power. Hello, and welcome to introduction to electric power systems. Differentiate between the characteristics of ac and dc power to explain why ac power is widely used in electrical systems. Lessons in electric circuits volume i dc chapter 1. A summary of the math and science preparation that will help you have the best experience with electrical engineering taught on khan academy.
There are a number of basic concepts that form the foundations of todays electronics and radio technology. While it is possible to produce motors powered by high voltage and low current characteristics of static electricity, this is not economic. A basic understanding of electricity and electrical systems is necessary for doe nuclear facility operators, maintenance personnel, and the technical staff to safely operate and maintain the facility and facility support systems. The concept of electricity is both familiar and mysterious. Software are the set of programs that make use of hardware for performing various functions. Overview this module discusses the main components of power systems. List the basic principles behind how electricity works and recall the useful forms of energy produced by the flow of electricity. In order to understand even the simplest concepts of electronics, you must first understand what electricity is. Copper and aluminum are the most common conductors.
In chapter 21, which is the last chapter of the regular text, we discuss solar fuels, which allow to store solar energy on the long term in the form of chemical energy. This concludes our exposition of basic computer circuits, built with relays. Oct 21, 2015 learn basic electrical concepts and terms. Just as there are a variety of technologies available in conventional vehicles, plugin electric vehicles also known as electric cars or evs have different capabilities that can accommodate different drivers needs. Basic concepts of electrical engineering 8 the value of the voltage or current of an a. These are the three basic building blocks required to manipulate and utilize electricity. Apr 29, 2018 among the basic concepts of static electricity and in reference to what interest us kitesurfing it is necessary to understand how things work so as to not discover another reason to end our kite session badly if could get hit by a lightning. The logical design of modern computers which use transistors instead of relays is not necessarily the same as that here expounded. Basic concepts in cobasic concepts in computer hardware and mputer hardware and softwaresoftware the need for computer literacythe need for compute r literacyr literacy information is power and computers are amplifiers of information when a pregnant woman collapsed into hepatic coma, a surgeon contacted a medical library. Voltage and current are the cornerstone concepts in electricity. Switching theory can be used to further develop the theoretical knowledge and concepts of digital circuits when viewe. Black powder and smokeless powder have graphite added to prevent ignition due to static electricity. After all, the whole purpose of electronics is to get electricity to do useful and interesting things.
This course explains the basic characteristics of electricity and electric circuits as well as the numerous qualitative and quantitative terms used to describe electricity. No single discovery has affected our lives, our culture and our survival more than electricity. Become familiar with engineering numbers and notation, and learn about the two most important electrical quantities. Basic electronics tutorials and revision is a free online electronics tutorials resource for beginners and beyond on all aspects of basic electronics. Current electricity is the form of electricity which makes all of our electronic gizmos possible.
Chapter 1 of the book, basic concepts of electrical engineering. It is a measure of the amount of energy gained or lost by moving a unit of positive charge from one point to another, as shown in figure 1. As a result each year a number of discoveries and advances for this technology have been made. This voltage drop principle leads to another important law in basic electrical engineering, kirchoffs voltage law kvl. Electricity is a term that covers all the phenomena caused by either electric charge or by movement of charge and the electrical and magnetic fields associated with that. A free powerpoint ppt presentation displayed as a flash slide show on id. One big headache for the power company is that when electricity travels in wires, it loses energy. Chapter 1 basic concepts of electricity pdf version you might have been wondering how charges can continuously flow in a uniform direction through wires without the benefit of these hypothetical sources and destinations.
Choose your answers to the questions and click next to see the next set of questions. Whether it is an electrical heater, a large electrical grid system, a mobile phone, computer, remote sensor node or whatever, the concept of electrical current is central to its operation. Basic concepts 2 of 7 basic circuit elements duration. Just like marbles in a tube or water in a pipe, it takes some kind of. The sole purpose was to present some fundamental concepts, that clarify how to make electricity think. Electricity is the most widely used form of energy, ranging from miniature batteries in your wristwatch to large arc furnaces for melting steel. Diagnose and configure computer systems and networks basic concepts of electricity basic electrical terms voltage is the amount of pulling force that makes the electron flow.
You would have observed that instructions have to be fed into the computer in a. The following is a brief description of the information presented in each module of the handbook. Mar 08, 2011 basic electrical concepts in each plant, the mechanical movement of different equipments is caused by an electric prime mover motor. However, some simple mathematics and basic concepts in physics and electricity will be used to describe certain phenomena. The work done in moving a unit positive charge from one point in the electric. Basics of ground, neutral and earth ground in electrical engineering ground, neutral and earth ground are three basic concepts of electrical engineering. Well gloss over the basics of each of those physics concepts, but it may help to consult other sources as well. There are billions of electrons flowing all around you. We all know what electricity is, or at least have a rough.
It is an invisible form of energy that can be transform into other form of energy like heat light and. Electric current is one of the most basic concepts that exists within electrical and. A major feature of evs is that drivers can plug them in to. The answer to this paradox is found in the concept of a circuit. Water in the upper tank has a high energy and as explained before, it flows down, giving up energy in the process. This uniform motion of electrons is what we call electricity, or electric current. An energy balance of a region or country is a set of relationships accounting for all energy which is produced, transformed and consumed in a certain period. Resistors allow current to flow to some degree in proportion to their resistance in ohms. Basic concepts of electricity electron proton neutron e n p p p p p p p n n n n n n e e e e e e even though each atom in a piece of material tends to hold together as a unit, theres actually a lot of empty space between the electrons and the cluster of protons and neutrons residing in the middle. Apr 21, 2018 a computer is a programmable machine designed to perform arithmetic and logical operations automatically and sequentially on the input given by the user and gives the desired output after processing. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. The next very important consideration to keep in mind is.
It is also known as potential difference or emfelectromotive force. Basic structure of the circuitry of a digital computer. Lets start with three very basic concepts of electricity. The information in the handbook is presented to provide a foundation for applying engineering concepts to the job. A computer is also an electronic device that stores, retrieves, and processes data, and can be programmed with instructions.
Direct current an electrical current that travels in one direction and used within the computers electronic circuits. The electrical science handbook consists of fifteen modules that are contained in four volumes. Whether it is an electrical heater, a large electrical grid system, a mobile phone, computer, remote sensor node or whatever, the concept of electrical current is central to its. Lessons in electric circuits, volume i dc by tony r. Electric circuits are composed of wires and other components like light bulbs, transistors, computer chips and motors. Basic electrical engineering pdf notes bee pdf notes. Pdf chapter 1 of the book,basic concepts of electrical. How the electric utility industry generates and delivers power to its customers covering basics, delivery, safety and generation. When you turn on a light switch, electric current flows from the switch through the wire to the light, and the room is instantly illuminated. Review of basic circuit concepts electric charge is the basis for describing all electrical phenomena. Assistant computer awareness basic concepts of computers class 1 lezend 7730064602.
The edison tech centers diverse material covers the engineering and applications side of electricity the fun part. This is because they are an integral part of our everyday existence. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Electricity basic concepts explained in simple and easy to follow steps. Basic electrical terms and concepts current, voltage, resistance, charge, power, efficiency. Learn vocabulary, terms, and more with flashcards, games, and other study tools. For the following concepts please also consult the course book physical computing osullivanigoe chapter 1 pp. Plus, get practice tests, quizzes, and personalized coaching to help you succeed. Ppt basic electrical engineering powerpoint presentation.
Winkler, basics of electricity electronics workshop, p. A circuit is a complete and closed path through which electric current can flow. Basics of computers introduction being a modernday kid you must have used, seen, or read about computers. The following outline is provided as an overview of and topical guide to electrical engineering electrical engineering field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. Download it once and read it on your kindle device, pc, phones or tablets. You can skip questions if you would like and come back to. Alternative methods of solar energy are discussed in part v. The pump then provides energy to drive the system by taking the water with lower potential energy and pumping it up to the upper tank. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. If we take a wire, or many wires, joined endtoend, and loop it around so that it forms a continuous pathway, we have the means to support a uniform flow of charge without having to resort to infinite sources and destinations. Electricity is define as the flow of electron or electric current. When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance.
Its important to understand electricitys basic principles to see how to use it wisely and safely. Computer components are divided into two major categories namely hardware and software. Basics of electrical engineering a text book for first year b tech students of engineering all specializations. Computer hardware and servicing lesson 4, module 4 ma.
Pdf basics of electrical engineering a text book for. Espino buhatan national high school purok marcos, buhatan, sorsogon city 2. To understand the fundamentals of electricity, we need to begin by focusing in on atoms, one of the basic building blocks of life and matter. Power is one of the key concepts and units associated with electrical science, measured in watts, power is an. Basic electronics concepts tutorials electronics notes.
This primer has been designed to cover some of the basic concepts, components, and uses of pv. As was previously mentioned, we need more than just a continuous path circuit before a continuous flow of electrons will occur. These cookies are used to collect information about how you interact with our website and allow us to remember. Power systems basic concepts and applications part i page 2 module 2. Electric current refers to the flow of the electric charge carried by electrons as they jump from atom to atom. Volts, amps, watts, fuse sizing, wire gauge, acdc, solar power and more. The promise of clean, cheap, and abundant electricity from the sun has been the dream of many scientists and businesses. Wires, made of metals called conductors that have a low resistance to current, connect the components. As shown in figure 11, generators, transmission lines and transformers are the three main components of power systems, and will be discussed in this module. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical. It causes damage to sensitive semiconductor circuitry.
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