This basic concepts of electricity online course explains the basic characteristics of electricity and electric circuits, the numerous qualitative and quantitative terms used to describe electricity, and answers questions like what is electricity. These are the three basic building blocks required to manipulate and utilize electricity. This course is part one of a twopart course on basic concepts and applications of power systems. At the end of the course the student is expected to 1. The topics are covered in a straightforward, simplified manner which allows you to quickly understand the fundamental principles. This concept has evolved from those of the archaic fire, the more modern vis viva living force, which. Circuit drawings and wiring diagrams electrician 8 youth explore trades skills activity 2. Current is measured in amperes, which is often shortened to amps. For an overall indepth grasp of numerical ability, this book covers from a to b of all the ideas. Resistors allow current to flow to some degree in proportion to their resistance in ohms. These water flow analogies are useful ways of understanding many electrical concepts. Understanding electricity requires knowledge of these basic electrical terms. It is common knowledge that water and electricity dont mix very well.
Their language was characteristically plain and direct, and was. Electrical resistance shares some conceptual parallels with the mechanical notion of. With electrons, this force is the same force at work in static electricity. Pdf basic concepts of electrical engineering p s subramanyam. Fundamental electrical concepts charge, current, voltage, power and energy chapter 2, sec. In its simplest terms, electricity is the movement of charge, which is considered by convention to be, from positive to negative. Ammeters are always connected in series with the circuit to be tested. Joule, wa to unit conversions and basic problems involving current and voltage. References to energy can be found in national education standards in nearly all academic disciplines. Apr 29, 2018 basic concepts of static electricity 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. We observe a force between objects, that, like gravity, acts at a. The technical content has been revised and updated to the requirements of the new 17th edition of the iee regulations bs 7671.
Download it once and read it on your kindle device, pc, phones or tablets. Electricity basics when beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance. Electricity is the part and parcel of our modern life and it is the most widely used form of energy. Lesson 1 voltage, current, resistance engineering circuit analysis. Rebecca and brent are putting up their christmas decorations ready for christmas eve. Tlc recommends that you download and save this pdf document and assignment to your computer desktop and open it with adobe acrobat dc reader. If an electrical circuit is open then no current can flow through the circuit. This course provides information on the basic concepts of direct current dc electricity and magnetism, including electrostatics, basic circuit concepts, and measurement of electrical quantities and associated numerical concepts, ohms law, practical circuits, electromagnetism, and electrical measurements. One ampere is 6,280,000,000,000,000,000 electrons passing a point in one second. Basic concepts of alternating current ced engineering. Let us start by explaining what electric current is. This is only an estimate of your actual energy use. Developing a basic knowledge of electrical concepts, however, will help you to better understand customer applications. Ammeter an instrument for measuring the flow of electrical current in amperes.
There are a number of basic concepts that form the foundations of. It causes damage to sensitive semiconductor circuitry. Black powder and smokeless powder have graphite added to prevent ignition due to static electricity. At first, these concepts can be difficult to understand because we cannot see them. The concept of electricity is both familiar and mysterious.
Basic concepts of electrical engineering 8 the value of the voltage or current of an a. The common form of electricity from power plant to homeoffice. Static electricity is, for the most part, a nusiance. Static electricity is, for the most part, a nuisance. Electricity is define as the flow of electron or electric current. Oct 21, 2015 learn basic electrical concepts and terms. Electrical current flows from a region of high charge or potential to a region of low potential. 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 information in the handbook is presented to provide a foundation for applying engineering concepts to the job.
Espino buhatan national high school purok marcos, buhatan, sorsogon city 2. The v is for voltage, which means the potential difference between two charges. To understand what this means, we need to start simply. If you continue browsing the site, you agree to the use of cookies on this website. The following is a brief description of the information presented in each module of the handbook. How the electric utility industry generates and delivers power to its customers covering basics, delivery, safety and generation. The math and basic electrical concepts of this unit are very similar to the foundation of a building. After all, the whole purpose of electronics is to get electricity to do useful and interesting things.
Evolution of a concept historians of science have probably written more essays on the development of the concept of energy than on any other subject. Switches when a switch is open off, there is a gap in the circuit. 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. A convention is a standard way of describing something so that others in.
Students will learn different applications of commonly used electrical machinery. Basic electrical concepts and terms current, voltage, resistance, power, charge, efficiency. This module describes the basic concepts of direct current dc electrical circuits and discusses the associated terminology. Basic electricity fundamentals information in power and energy. The magnitude of resistance is dictated by electric properties of the material and material geometry. Oct 18, 2017 basic electricity potential difference duration. Electricity and magnetism basic concepts slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The smallest unit of charge in nature is a single electron, but as it is not practical to book. Electricity is the flow of electrons from one place to another. The electrical science handbook consists of fifteen modules that are contained in four volumes.
In electronics and electrical technology, a coil is. Computer hardware and servicing lesson 4, module 4 ma. Electric charge refers to a fundamental property of matter that even physicists dont totally understand. Students will learn strong basics of electrical engineering and practical implementation of electrical fundamentals. It is very important to understand these three concepts well. The concepts in this unit are the essen tial basics that you must understand, because youll build upon them as you study electrical circuits and systems. When an electric circuit flows through a conductor, a magnetic field or flux develops around the conductor. The highest flux density occurs when the conductor is formed into a coil having many turns. However, interestingly, water and electricity behave in a sort of similar way. The most fundamental law in electricity is ohms law or vir.
Alternating current ac an electric current that reverses its direction many times a second at regular intervals. Electrons can flow through any material, but does so more easily in some than in others. If the particles accumulate on an object, we term this static electricity. Jun 23, 2019 just like marbles in a tube or water in a pipe, it takes some kind of influencing force to initiate flow. This behavior of materials is often used to controllimit electric current flow in circuits. Brent hangs a pair of glassball christmas tree decorations from a single 40 cm long thread looped over a pin as shown. Volts, amps, watts, fuse sizing, wire gauge, acdc, solar power and more. Electricity basics explained without using complicated physics.
Principle of operation of dc machines, types of dc generators. Basics of power plants,power system protection,basics of electrical,generator protection,motors protection,basics of motor,basics of generator. Build an intuitive understanding of current and voltage, and power. Electricity is the flow of electrons in a conductor from one atom to the next atom in the same general direction. Tlc recommends that you download and save this pdf document and. Electricity basic concepts explained in simple and easy to follow steps. We all know what electricity is, or at least have a rough. Since, unlike electricity, water is visible, it often useful to first understand the behavior of water and then using it to understand electricity. Know the fundamental of electrical engineering and practical.
In order to understand even the simplest concepts of electronics, you must first understand what electricity is. While is is possible to produce motors powered by high voltage and low current characteristic of static electricity, this is not economic. The wiring diagram will show the circuit students will wire in wiring devices and wiring a wall section. No pdf files stored in this site but only links from search engines and other sites. Preface the 5th edition of basic electrical installation work has been completely rewritten in 14 chapters to closely match the 14 outcomes of the city and guilds quali. Just like marbles in a tube or water in a pipe, it takes some kind of. There are billions of electrons flowing all around you. 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.
Fundamentals of electricity the technical term electricity is the property of certain particles to possess a force field which is neither gravitational nor nuclear. Man has learnt about electricity from nature as it is also a basic part of nature. Basics on electricity and electrical generation ej moyer, u. Basic concepts of electricity workforce libretexts. Basic wiring diagram have students produce a basic wiring diagram. While it is possible to produce motors powered by high voltage and low. Intro to electricity nyu tandon school of engineering. There are times when you want some water but dont need all the water that the pipe can deliver. Basic electrical engineering pdf notes bee pdf notes. The course content is in pdf format in each module. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. While it is possible to produce motors powered by high voltage and low current characteristics of static electricity, this is not economic. The concept of electricity arises from an observation of nature.
Understand the concepts of current flow, electrical pressure, resistance and energy. In electronics and electrical technology, a coil is usually known as an inductor. Pdf chapter 1 of the book,basic concepts of electrical. We are gathering a free pdf books from topics like.
Electrical power is derived from either utilities or internal generators and is distributed through transformers to deliver usable voltage levels. In other words, it is a measurement of the work required to move a unit charge between two points. Introduction chapter 1 direct current direct current basics dc circuits magnetism chapter 2 alternating current alternating current basics inductance and capacitance ac circuits transformers final exam if you do not have a basic. Circuits incomplete circuit symbols we use these symbols to draw diagrams of circuits. This application uses your local weather and energy rates. Electric vehicles 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. Principle of operation of dc motors, types of dc motors. After the main topic of each chapter is introduced, subtopics are explored in a step by step manner with explanations given for each new engineering principle. Ohms law is the relationship between power, voltage, current and resistance. Now that you have a basic understanding of electricity, you can safely read electrical safetyby clicking on the menu at the top of this page. Pdf guide to basic electric power generation concepts. Conductors allow electrical current to easily flow because of their free electrons.
Current i current is the quantity of electrons passing a given point. Henceforth, the conductors that exhibit the property of resisting current flow are called resistors. The principles apply to alternating current ac, direct current dc, or radio frequency rf. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Flow of electric current through a conductor experiences a certain amount of resistance. Everything, from water and air to rocks, plants and animals, is made up of minute particles called atoms.
Feb, 2009 electricity and magnetism basic concepts slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Practical implementation of fundamental theory concepts. Mar 08, 2011 basic electrical concepts in each plant, the mechanical movement of different equipments is caused by an electric prime mover motor. When we see a value such as 10 volts, it is a measurement of the potential difference between two. No matter how the charge is created, chemically like in batteries or physically friction from socks and carpet, the movement of the discharge is electricity. Lets start with three very basic concepts of electricity. The capacity of a battery is a measure of charge it can deliver to an external circuit. This flow of electrons is referred to as current and is designated by the symbol i. Bee basic electric engineering is common to first year branches of ug engineeringexpect bt. Electricity will only travel around a circuit that is complete. Apparent power is defined as the product of current time voltage passing through an ac circuit. Resistance the circuit in the previous section is not a very practical one. Newnes is an imprint of elsevier linacre house, jordan hill, oxford ox2 8dp, uk 30 corporate drive, suite 400, burlington, ma 01803, usa first published 1993 as electrical and electronic principles 1 by edward arnold.
Energy instead of looking at a physical system in terms of its kinematics and the forces acting on its components we can look at a physical system in terms of its energy in the concept of this course we will consider 2 forms of energy. Basic electricity fundamentals information in power and. Basic electrical engineering pdf free download bee notes pdf. As was previously mentioned, we need more than just a continuous path circuit before a continuous flow of electrons will occur.
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