When we see a value such as 10 volts, it is a measurement of the potential difference between two. Resistor concept i flow of electric current through a conductor experiences a certain amount of resistance. This view remained unchallenged for the next two thousand years. High school electricity lessonplans, homework, quizzes. To understand what this means, we need to start simply. Electron is the negatively charge component of an atom. Any text book dealing with middle school science, electricity or chemistry will have a unit on the atom. There are a number of basic concepts that form the foundations of todays electronics and radio technology. Basic electricity fundamentals information in power and energy. 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. Pdf chapter 1 of the book,basic concepts of electrical. The key concept with charge is that it can come in two types. They receive electricity by plugging into the grid and store it in batteries. Electrons can be made to move from one atom to another.
It is common knowledge that water and electricity dont mix very well. Basic electricity fundamentals information in power and. Electric charge refers to a fundamental property of matter that even physicists dont totally understand. Basic electrical terms and concepts current, voltage, resistance, charge, power, efficiency. It was aristotle 384322 bc who developed the concept of fire as one of four basic elements of nature first described by empedocles 490430 bc, the other three being earth, water and air. Black powder and smokeless powder have graphite added to prevent ignition due to static electricity.
This principle is basic to the operation of transistors, diodes, and other solidstate electronic devices. Fundamental electrical concepts charge, current, voltage, power and energy chapter 2, sec. Suffice it to say that two of the tiny particles that make up atoms protons and electrons are the bearers of electric charge. Computer hardware and servicing lesson 4, module 4 ma. A powerpoint introducing a ks1 class to electricity and the difference between mains electricity and batteryoperated. What is electricity the definition of electricity is the flow of charge. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Supplementary materials such as handouts and vocabulary cards will be presented in the unit.
Physics associated with nuclear medicine instrumentation part b clrs 321 nuclear medicine physics and instrumentation 1 a free powerpoint ppt presentation displayed as a flash slide show on id. Knowledge of basic circuit symbols concept of resistance and knowledge of ohms law ability to recognise and use fixed and variable resistors and sp. While it is possible to produce motors powered by high voltage and low current characteristics of static electricity, this is not economic. How the electric utility industry generates and delivers power to its customers covering basics, delivery, safety and generation. It is an invisible form of energy that can be transform into other form of energy like heat light and mechanical. Generally, the overhead service cable between the building property line and the supply point is supplied by electric company to a limit of 30 meters.
It causes damage to sensitive semiconductor circuitry. One of these is coulombs per second, a measure of the flow of electrons. The concept of electric charge should be introduced at this point. The answer to this paradox is found in the concept of a circuit.
After all, the whole purpose of electronics is to get electricity to do useful and interesting things. Electrical energy has been converted into heat energy. Electricity is define as the flow of electron or electric current. These gate circuits are made out of transistors actually, these days from cmos but it is a lot easier to show the symbol than the circuit. They consume no petroleumbased fuel and produce no tailpipe emissions. Primary energy is the energy as it is available in the natural environment, i.
Heating effect of electric current when an electric current flows through a wire, the wire heats up. Lockouttagout is an essential safety procedure that protects workers from injury while. You can work through several examples with the students of this important equation which they will use often in designing systems. Be sure that all connections are securely fastened. None of the following lessons on electricity can be taught without a basic understanding of the atom. List the basic principles behind how electricity works and recall the useful forms of energy produced by the flow of electricity. The greater the resistance of the wire, the greater the amount of heat produced.
Fundamentals of electricity the technical term electricity is the property of certain particles to possess a force field which is neither gravitational nor nuclear. You can work through several examples with the students of this important equation. Evs also known as plugin electric vehicles derive all or part of their power from electricity supplied by the electric grid. The common types of raceways in household wiring are the a conduits, b connectors, and c others a conduits. Proton is the positively charge component of an atom. Be sure that parts with positive or negative markings are positioned as shown in the drawings. The concept of electricity is both familiar and mysterious. This curriculum unit is designed to teach a few basic concepts of electricity to middle school students. Displaying electricity for class 10 powerpoint presentations lockouttagout is an essential safety procedure that protects workers from injury ppt presentation summary. You want them to understand that watts, power, is a product, the product of both the force of the electricity volts and the quantity of the electricity flowing in the circuit, amps. As we mentioned at the beginning of this tutorial, electricity is defined as the flow of electric charge. These are the three basic building blocks required to manipulate and utilize electricity. In electronics and electrical technology, a coil is usually known as an inductor.
Build an intuitive understanding of current and voltage, and power. 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. Static electricity is, for the most part, a nuisance. Chapter 1 of the book,basic concepts of electrical engineering. An elementary food chain already shows the need for energy. Espino buhatan national high school purok marcos, buhatan, sorsogon city 2. This video explains electricity as the flow of atomic particles called electrons. For instance, when one coulomb or 6 x 1018 electrons flows past a given point on a conductor in one second, it is defined as a current of one ampere. Basic electronics concepts tutorials electronics notes.
However, interestingly, water and electricity behave in a sort of similar way. When electrons enter at one end of a resistor, some of the electrons collide with atoms within the resistor. Intro to electricity nyu tandon school of engineering. To be able to describe the interrelationship between voltage, current and resistance in electrical circuits. The most fundamental law in electricity is ohms law or vir. An atom that gains electrons has more negative particles and is negatively charge. Basic electricity and electronics ppt presentation summary. Aevs allelectric vehicles are powered by one or more electric motors. Energy flow is represented in the diagram in figure 2.
Basic concepts of electrical engineering 8 the value of the voltage or current of an a. May 29, 2016 just a small presentation explaining the basic concept of electricity. Charge is a property of matterjust like mass, volume, or density. Introduction to electricity powerpoint teaching resources. For each lecture, the powerpoint file is available, along with a fullcolor 4slideperpage pdf version.
These atoms start vibrating and transfer their energy to. Resistor concept ii a resistor is a dissipative element. The magnitude of induced emf can be calculated from the emf equation of dc generator. Lets start with three very basic concepts of electricity. Ppt basic electricity powerpoint presentation free to. Academic program for nuclear power plant personnel, volume iv, columbia, md. Everything, from water and air to rocks, plants and animals, is made up of minute particles called atoms.
It is analogous to the viscous friction element of. Energy is involved in all life cycles, and it is essential in agriculture as much as in all other productive activities. According to faradays laws of electromagnetic induction, whenever a conductor is placed in a varying magnetic field or a conductor is moved in a magnetic field, an emf electromotive force gets induced in the conductor. The most common type of service entrance employed by the power companies supplying electricity which is either a 2, 3 or 4wire connection. Powerpoint presentation on electricity and different types of energy. When an electric circuit flows through a conductor, a magnetic field or flux develops around the conductor. We observe a force between objects, that, like gravity, acts at a distance. 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 electrons without having to. Just as you can quantify how much mass something has, you can measure how much charge it has. Raceways are channels designed for holding wires, cables or busbars, which are either made of metal or insulating materials. Why should you understand electricity current and amperes potential difference and volts relationship between potential difference and current sources of potential difference concept of resistance ohms law dc and ac current why.
Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Hewitts conceptual physics powerpoints use keynote to open for unit one you should know chapters 1, 2, 3, 4, 6 and 7. Most circuit problems are due to incorrect assembly, always double check that your circuit exactly matches the drawing for it. Lockouttagout is an essential safety procedure that protects workers from injury while working on or near electrical circuits and equipment. This heating effect is used in common electrical appliances. The v is for voltage, which means the potential difference between two charges. Electricity powerpoint presentation teaching resources. When those electrons move between the atoms, a current of electricity is created. The concept of electricity arises from an observation of nature. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Just a small presentation explaining the basic concept of electricity. Scientists know that there are ways of measuring electrical quantities. Winner of the standing ovation award for best powerpoint templates from presentations magazine. The highest flux density occurs when the conductor is formed into a coil having many turns. Electric power systems pennsylvania state university. A voltage source provides the energy or work required to produce a current volts joulescoulomb dwdq a source takes charged particles usually electrons and raises their potential so they flow out of one terminal into and through a transducer light bulb or motor on their way back to the sources other terminal voltage voltage is a measure of the potential energy that causes a current to flow through a transducer in a circuit voltage is always measured as a difference with respect. Knowledge of basic circuit symbols concept of resistance and knowledge of ohms law ability to. Differentiate between the characteristics of ac and dc power to explain why ac power is widely used in electrical systems. In other words, it is a measurement of the work required to move a unit charge between two points. It is analogous to the viscous friction element of mechanical system. Its another concept which helps us model the behavior of electric fields. Electric potential builds upon electric potential energy to help define how much energy is stored in electric fields. We all know what electricity is, or at least have a rough. Sienko and plane, chemical principles and properties,2.