Lets understand by an arc welding circuit or working diagram. Understand the electrical principles of alternating current ac. Terms and definitions associated with electrons and electrical theory a. Draw the phasor diagram for a given ac voltage applied to. Basic electrical circuits and theory branch circuit wiring a basic top view floor plan terminology block diagram. This is far too small to be any use, so we consider electricity to flow in packets called. Pdf electronic devices and circuit theory by robert. It is common knowledge that water and electricity dont mix very well. Basic electricity fall 2011 this course module introduces the basic physical models by which we explain the flow of electricity.
Text headings in each module are linked to and from the table of contents for that module. The automotive electrical system contains five electrical circuits. This lesson, your first in basic electricity, will introduce you to many of the. Electrical basics electrical safety electricity is a wonderful utility, but can be dangerous if not approached carefully. Basic electrical technology lecturer nptel videos description notes by prof.
In electronics and electrical technology, a coil is usually known as an inductor. Basic electricity fundamentals information in power and energy. Electrical current flows from a region of high charge or potential to a region of low potential. Theory of electricity current in metallic conductor. For example, in figure b1, the control wiring from the startstop pushbutton. 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. The current only flows in an electrical circuit when the path is completely closed, forming a loop. An electric circuit is a complete path through which electricity travels circuits are made up of wires and electrical parts such as batteries, light bulbs, resistors, motors and switches a circuit diagram is a shorthand method of describing a working circuit. S and average values and form factor for different periodic wave forms, series rl, rc, rlc and. Conventional flow will be used from this point on in these training modules unless otherwise.
Electron theory electron theory helps to explain electricity. Includes calculations as applied to alternating and direct current. His experiment proved static electricity and lightning were one and the same. This pdf ebook notes on basic electrical engineering contains brief concise notes and will help you in your studies for your first year semester examination. Click on the doe seal below to move to the overview. The electrical installation handbook is a tool which is suitable for all those who are interested in electrical plants. Complete the record sheet in the back of this booklet and submit it as instructed by county 4h youth educator or 4h electric leader. Henceforth, the conductors that exhibit the property of resisting current flow are called resistors. Electrical circuit theory body electrical diagnosis course l652 3 the first step in being able to effectively diagnose electrical problems is to have a good understanding of basic electrical principles. Here are the pdf lecture notes for the first year engineering subject basic electrical engineering. This behavior of materials is often used to controllimit electric current flow in circuits. Either theory can be used as long as the orientations are correct. Pdf basic electrical engineering 1st year ebook, notes.
You will then learn about schematic diagrams and how they are used to design and build circuits. What is electric current and theory of electricity electrical4u. A potential energy diagram shows the change in energy during a reaction. The modules listed in the overview are linked to the corresponding pages. Sep 29, 2016 the diagrams show a structure that is used to generate electricity from wave power. As a construction electrician, your understanding and knowledge of basic electrical theory will able to conduct the navys mission. What is electrical energy definition formula unit of electrical energy. Electrical circuit an electrical circuit is the complete loop through which an electrical current flows. Lets start with three very basic concepts of electricity. All control systems operate in accordance with few basic principles but before we discuss these, lets address. It is made up of a series of electrical components and conductors e.
One ampere is 6,280,000,000,000,000,000 electrons passing a point in one second. Jun, 2018 electrical installation theory and practice pdf handbook of electrical installation practice by geoffrey stokes thanks for visiting our website to. Maxwell unified existing laws of electricity and magnetism electricity and magnetism notes electricity and magnetism are closely related electricity is the interaction of electric charges. Students will learn different applications of commonly used electrical machinery. Text headings in each module are linked to and f\ rom the table of contents for that module. Know the fundamental of electrical engineering and practical. Understanding electricity requires knowledge of these basic electrical terms. Generally dont write the name of physical quantities used in the formula. State approval listing link, check to see if your state accepts or has pre approved this course. Lalu 5771 aclr 89103 tc lr pm np pu am cm bk cf es fm md no rf db sg bh hs mt 1 2 3 4 5 6 7 1 1. Course syllabus elpt 11 basic electrical theory c a ta l o g d e s c r i p ti o n. An introduction to electric power transmission presentation. Bee pdf notes short disciption form becoming an electrical engineer requires training, commitment, and the willingness to wonder about questions such as how a flatscreen television manages to be energy efficient or how a user manages to use so much electricity without blowing a fuse.
The technical content has been revised and updated to the requirements of the new 17th edition of the iee regulations bs 7671. Understanding electricity even though basic electrical theory was not understood until much later, electricity has existed in the world since the beginning of time. Basic electrical engineering pdf free download bee notes pdf. Fundamentals of hvac controls the application of heating, ventilating, and airconditioning hvac controls starts with an understanding of the building and the use of the spaces to be conditioned and controlled. Review the basic electrical concepts of voltage, amperage, and resistance.
Basic electricity fundamentals information in power and. Example problems problem 1 a when a potential difference of 12 v is applied to a wire of radius 0. Electric circuit theory and electromagnetic theory are the two fundamental theories upon which all branches of electrical engineering are built. 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. Note that field intensity for examples 2 and 3 is the same. These are the three basic building blocks required to manipulate and utilize electricity.
Practical implementation of fundamental theory concepts. Introduction to basic electronics, electronic components and projects. Review the characteristics of voltage, amperage, and resistance in series and parallel circuits, showing how they are used when diagnosing electrical. At first, these concepts can be difficult to understand because we cannot see them.
Bee basic electric engineering is common to first year branches of. Basic electrical principles 6 basic electrical principles electrical physics as a starting point it is important to understand what is happening within an electrical system to take away the unknown and feel confident about working with electricity. Looking at the node connection between two loops in the diagram below. A multimeter is a device thats used to measure electric current amps, voltage volts and. States navy who does not use electrical or electronic equipment. Brush up on some basic electrical theory and deepen your knowledge about electricity. Ammeter an instrument for measuring the flow of electrical current in amperes. Distribution line a line that carries electricity at lower voltages of 12kv to 44kv and is used to distribute power. Since, unlike electricity, water is visible, it often useful to first understand the behavior of water and then using it to understand electricity. Cyclotron basic construction and working principle. Understand the requirements and configurations of electrical circuits. Fm 1162 solid state devices and solid state power supplies, september 1983. In other words, it is a measurement of the work required to move a unit charge between two points.
There are a number of basic concepts that form the foundations of todays electronics and radio technology. Arc weldingdefinition, types, working, temperature. Identify the basic types of automotive wiring, types of terminals, and wiring diagrams. This easytouse guide takes you through the basics of electricity and familiarizes you with the workings of voltage, current, resistance, power, and other circuit values in directcurrent and. The electrical science handbook consists of fifteen modules that are contained in four volumes. For each lecture, the powerpoint file is available, along with a fullcolor 4slideperpage pdf version. Understand the requirements of electrical circuit computations. Students will learn strong basics of electrical engineering and practical implementation of electrical fundamentals. For, we should note that the voltage is 8 v positive at the top, the same as the. Apart from providing a conventional introduction to ac theory however, there is a subtext. These concepts were covered in depth in the l623 course.
Setting the standard for nearly 30 years, this highly accurate text is supported by strong pedagogy and content that is ideal for new students of this rapidly. Long before anyone heard the word electricity, people had seen lightning and experienced shocks from electric fish. In most home wiring situations, you will probably only find three kinds of light switches. Intro to electricity nyu tandon school of engineering. Basic electrical engineering pdf notes bee pdf notes. This relates to the authors concerns as a scientist. Principle of operation of dc machines, types of dc generators. This module describes basic electrical concepts and introduces electrical. Fundamentals of electricity despite the fact that it has been positively determined that electron flow is the correct theory, the conventional flow theory still dominates the industry. Circuit a conductor through which electrons can flow away from and return to an electrical source. When trying to find a wiring diagram for a light switch, you first have continue reading.
However, interestingly, water and electricity behave in a sort of similar way. Unit 1 basic principles of motor controls different manufacturers of control devices, as well as books about motor controls, use different methods of showing the control circuit wiring. Note that there is no such thing as a perfect constant voltage source. Pdf basic electrical house wiring abdulaziz hassan. The basic building block for matter, anything that has mass and occupies space, is the atom. Electromotive force emf force that pushes free electrons out of. Atom model nucleus electron fundamental of electricity 3. Review the components of a basic automotive electrical circuit. These atoms are the smallest particles into which an element or substance can be divided without losing its. Electric circuits can be correctly analyzed using either conventional current flow or electron flow. All matter solid, liquid, or gas is made up of molecules, or atoms joined together.
With basic electricity, second edition, you can teach yourself all about electricityfor everyday understanding or as a basis for further study. Capitulo 2 automotive electrical circuits and wiring. This tutorial will give you an introduction to basic electronics for beginners. Alternating current ac an electric current that reverses its direction many times a second at regular intervals. Electrical drafters work with electricians to prepare diagrams of wiring electrical system layouts. This force may be illustrated with lines as shown in figure. Electrical current is described as a flow of electrons. An ac or dc power sources, fitted with whatever controls may be needed, is connected by work cable to the workpiece and by an electrode cable to electrode holder of some type, which makes electrical contact with the welding electrode. Here you can download the free lecture notes of electric circuits pdf notes ec notes pdf materials with multiple file links to download. It shows you what a basic circuit looks like and even shows you how to add a switch to a light within that circuit.
Basic electronics concepts tutorials electronics notes. Basic electrical theory there are four basic electrical quantities that we need to know. The highest flux density occurs when the conductor is formed into a coil having many turns. This video shows the basics in easytounderstand language. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. L e c tu r e h o u r s 2, l a b h o u r s 3 p r e r e q u i s i te s. When an electric circuit flows through a conductor, a magnetic field or flux develops around the conductor. Conventional current flow theory ignores the flow of electrons and states that current flows from positive to negative. Electrical fundamentals general electricity is a form of.
When we see a value such as 10 volts, it is a measurement of the potential difference between two. Jan 31, 2019 hence, unit of current is coulomb second and it is well known as ampere after the great physicist andrew marie ampere. The 11th edition of electronic devices and circuit theory by robert boylestad and louis nashelsky offers students complete, comprehensive coverage of the subject, focusing on all the essentials they will need to succeed on the job. Understanding basic electrical theory no single discovery has affected our lives, our culture and our survival more than electricity. Electronics drafters also prepare wiring diagrams for use in the making, installing, and repairing of electronic gadgets. Introduction to single phase ac circuit purely resistive circuit purely. The bohr model of an atom a nucleus surrounded by shells of electrons traveling in discrete orbits is presented. Page 59 in the electrical code simplified book will help students to understand how.
The following is a brief description of the information presented in each module of the handbook. Basic electrical and electronics engineering notes pdf bee basic electric engineering is common to firstyear branches of ug engineeringexpect bt. Understanding the basic principles of electricity is a foundational skill for all branches of. This equipment is needed in systems of electric lighting and power, and intercommunications. 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. This portable document format \pdf\ file contains bookmarks, thumbnails, and hyperlinks to help you navigate through the document. Apr 10, 2019 if just one switch controls the light, buy a singlepole dimmer. Ammeters are always connected in series with the circuit to be tested. The most fundamental law in electricity is ohms law or vir. Suffice it to say that two of the tiny particles that make up atoms protons and electrons are the bearers of electric charge. The electric circuits notes pdf ec pdf notes book starts with the topics covering voltage and current sources, network reduction techniques, r.
Understand the electrical principles of direct cur rent dc. Electrical installation handbook protection, control and. Umanand description about all chapters i consider this as lecture 2 meaning the first part the motivation as 1, the second part the course contents as 2 and the lecture 3 which will be of course the next hour. Volume 1 of 4 module 1 basic electrical theory this module describes basic electrical concepts and introduces electrical terminology. Principle of operation of dc motors, types of dc motors. Page 2 6 electrical principlescorrespondence version a switch is used to interrupt the circuit onoff. At the end of the course, the student is expected to know the fundamental of electrical engineering and practical and practical implementation of fundamental theory concepts. Electric circuit theory and electromagnetic theory are the two funda mental theories upon. The magnitude of resistance is dictated by electric properties of the material and material geometry. This portable document format pdf file contains bookmarks, thumbnails, and hyperlinks to help you navigate through the document. Many branches of electrical engineering, such as power, electric machines, control, electronics, communications, and instrumentation, are based on electric circuit theory. Direct current dc electric current flows continuously in the same direction as contrasted with alternating current. Electric charge refers to a fundamental property of matter that even physicists dont totally understand. Automotive electrical circuits and wiring 9 101 battery capacity the capacity of a.
The electrical systems on equipment used by the navy are designed to perform a variety of functions. Basic electrical and electronics engineering notes pdf. Understand some basic symbols for schematic drawings and wiring diagrams. The labview block diagram will be very similar to the coding block diagram. Lecture 1 fundamental of electricity linkedin slideshare. We will create our first mental models for these basic electrical quantities. It is the students responsibility to note dates for assignments and keep up with the course work. The main cause of current through a metallic substance is the flow of electrons that is the directional drift of free electrons. The bohr model of an atom a nucleus surrounded by shells of electrons traveling in discrete.