At first, these concepts can be difficult to understand because we cannot see them. You will find conventional flow notation followed by most electrical engineers, and illustrated in most engineering textbooks. Assistant computer awareness basic concepts of computers class 1 lezend 7730064602. The electrical science handbook consists of fifteen modules that are contained in four volumes. The edison tech centers diverse material covers the engineering and applications side of electricity the fun part. Voltage and current basic concepts of electricity electronics. Basic electrical engineering pdf notes bee pdf notes. Hello, and welcome to introduction to electric power systems.
The concept of electricity is both familiar and mysterious. As was previously mentioned, we need more than just a continuous path i. Espino buhatan national high school purok marcos, buhatan, sorsogon city 2. 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. Winkler, basics of electricity electronics workshop, p. Ppt basic electronics powerpoint presentation free to. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Chapter 1 of the book,basic concepts of electrical engineering. Electrical power is derived from either utilities or internal generators and is distributed through transformers to deliver usable voltage levels. As a result each year a number of discoveries and advances for this technology have been made. Its important to understand electricitys basic principles to see how to use it wisely and safely. One big headache for the power company is that when electricity travels in wires, it loses energy.
Just like marbles in a tube or water in a pipe, it takes some kind of. Alternative methods of solar energy are discussed in part v. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. We all know what electricity is, or at least have a rough. Review of basic circuit concepts electric charge is the basis for describing all electrical phenomena. 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. This uniform motion of electrons is what we call electricity, or electric current. A major feature of evs is that drivers can plug them in to.
Basic concepts of electricity basic concepts of electricity. Just like water flowing through the emptiness of a pipe, electrons are able to move within the empty space within. Computer components are divided into two major categories namely hardware and software. The following is a brief description of the information presented in each module of the handbook.
Oct 21, 2015 learn basic electrical concepts and terms. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Overview this module discusses the main components of power systems. Volts, amps, watts, fuse sizing, wire gauge, acdc, solar power and more. While it is possible to produce motors powered by high voltage and low current characteristics of static electricity, this is not economic. Basics of electrical engineering a text book for first year b tech students of engineering all specializations. The promise of clean, cheap, and abundant electricity from the sun has been the dream of many scientists and businesses.
Basic concepts 2 of 7 basic circuit elements duration. This is because they are an integral part of our everyday existence. 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. Plus, get practice tests, quizzes, and personalized coaching to help you succeed. As opposed to static electricity where charges gather and remain at rest, current electricity is dynamic, charges are always on the move. 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. 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. 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. Ppt basic electrical engineering powerpoint presentation. For the following concepts please also consult the course book physical computing osullivanigoe chapter 1 pp. Basic concepts of electrical engineering 8 the value of the voltage or current of an a. 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. This concludes our exposition of basic computer circuits, built with relays.
Lets start with three very basic concepts of electricity. Switching theory can be used to further develop the theoretical knowledge and concepts of digital circuits when viewe. Basic electrical engineering pdf free download links. Power systems basic concepts and applications part i page 2 module 2. 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. Become familiar with engineering numbers and notation, and learn about the two most important electrical quantities. How the electric utility industry generates and delivers power to its customers covering basics, delivery, safety and generation. Just like marbles in a tube or water in a pipe, it takes some kind of influencing force to initiate flow.
Basics of computers introduction being a modernday kid you must have used, seen, or read about computers. View basic concepts of electricity from engineerin 1220 at polytechnic university of the philippines. This module will cover the fundamentals of electricity in a practical way, and will not be complicated by. Resistors allow current to flow to some degree in proportion to their resistance in ohms. Build an intuitive understanding of current and voltage, and power. Mar 08, 2011 basic electrical concepts in each plant, the mechanical movement of different equipments is caused by an electric prime mover motor. There are billions of electrons flowing all around you. Basic electronics concepts tutorials electronics notes. 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. In order to understand even the simplest concepts of electronics, you must first understand what electricity is. Basic concepts, laws, and principles basic electrical. Kuphaldt fifth edition, last update october 18, 2006. No single discovery has affected our lives, our culture and our survival more than electricity. Lessons in electric circuits, volume i dc by tony r.
These cookies are used to collect information about how you interact with our website and allow us to remember. Electricity is define as the flow of electron or electric current. A summary of the math and science preparation that will help you have the best experience with electrical engineering taught on khan academy. 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. The meaning of the voltage vab is the voltage at a. 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. Pdf chapter 1 of the book,basic concepts of electrical.
When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance. 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. You can skip questions if you would like and come back to. The logical design of modern computers which use transistors instead of relays is not necessarily the same as that here expounded. The objective is to provide the attendee with a coherent and functional grasp of the fundamental concepts of nmr and how they are used. The field first became an identifiable occupation in the late nineteenth century after commercialization of the electric telegraph and electrical. Wires, made of metals called conductors that have a low resistance to current, connect the components. 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. Direct current an electrical current that travels in one direction and used within the computers electronic circuits.
Basic electrical terms and concepts current, voltage, resistance, charge, power, efficiency. 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. Power is one of the key concepts and units associated with electrical science, measured in watts, power is an. Well gloss over the basics of each of those physics concepts, but it may help to consult other sources as well. Electric current is one of the most basic concepts that exists within electrical and. Download it once and read it on your kindle device, pc, phones or tablets.
The next very important consideration to keep in mind is. In chapter 20 we introduce different concepts related to solar thermal energy. Computer hardware and servicing lesson 4, module 4 ma. 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. A circuit is a complete and closed path through which electric current can flow. After all, the whole purpose of electronics is to get electricity to do useful and interesting things. 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. Black powder and smokeless powder have graphite added to prevent ignition due to static electricity. You would have observed that instructions have to be fed into the computer in a. 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. 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. Basic concepts and resistive circuits shahriar mirabbasi department of electrical and computer engineering university of british columbia.
Water in the upper tank has a high energy and as explained before, it flows down, giving up energy in the process. As was previously mentioned, we need more than just a continuous path circuit before a continuous flow of electrons will occur. 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. To be more precise, it could be called dynamic electricity in contrast to static electricity, which is an unmoving accumulation of electric charge. Basic structure of the circuitry of a digital computer.
The work done in moving a unit positive charge from one point in the electric. 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. Electricity basic concepts explained in simple and easy to follow steps. List the basic principles behind how electricity works and recall the useful forms of energy produced by the flow of electricity. Pdf basics of electrical engineering a text book for.
The sole purpose was to present some fundamental concepts, that clarify how to make electricity think. Copper and aluminum are the most common conductors. The information in the handbook is presented to provide a foundation for applying engineering concepts to the job. Electrical wiring of the distribution board with rcd, single phase, from energy meter to the main distribution board fuse board connection. It is also known as potential difference or emfelectromotive force. A computer is also an electronic device that stores, retrieves, and processes data, and can be programmed with instructions. First, we need to understand what series and parallel circuits mean. Lessons in electric circuits volume i dc chapter 1. This course explains the basic characteristics of electricity and electric circuits as well as the numerous qualitative and quantitative terms used to describe electricity. A free powerpoint ppt presentation displayed as a flash slide show on id. Electric circuits are composed of wires and other components like light bulbs, transistors, computer chips and motors.
Software are the set of programs that make use of hardware for performing various functions. It causes damage to sensitive semiconductor circuitry. However, some simple mathematics and basic concepts in physics and electricity will be used to describe certain phenomena. Introduction to electrical engineering khan academy. Chapter 1 of the book, basic concepts of electrical engineering. As a member, youll also get unlimited access to over 79,000 lessons in math, english, science, history, and more. Electricity is the most widely used form of energy, ranging from miniature batteries in your wristwatch to large arc furnaces for melting steel. Hardware is the machine itself and its connected devices such as monitor, keyboard, mouse etc. There are a number of basic concepts that form the foundations of todays electronics and radio technology. Basics of ground, neutral and earth ground in electrical engineering ground, neutral and earth ground are three basic concepts of electrical engineering. 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.
Earlier on,we discussed how electricity is generated at the power station. 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. Electron is the negatively charge component of an atom. These are the three basic building blocks required to manipulate and utilize electricity. Choose your answers to the questions and click next to see the next set of questions. Current electricity is the form of electricity which makes all of our electronic gizmos possible.
Voltage and current are the cornerstone concepts in electricity. The answer to this paradox is found in the concept of a circuit. Differentiate between the characteristics of ac and dc power to explain why ac power is widely used in electrical systems. This voltage drop principle leads to another important law in basic electrical engineering, kirchoffs voltage law kvl.
This form of electricity exists when charges are able to constantly flow. Static electricity is, for the most part, a nuisance. 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 electronics tutorials and revision is a free online electronics tutorials resource for beginners and beyond on all aspects of basic electronics.
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