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## electricity water analogy animation

What Makes Up Electricity? – In order to move charge from point A to point B, work needs to be done. Figure 1. Amp or Ampere is the unit for current. A water wheel in the pipe. Play Animation. Since electric current is invisible and the processes at play in electronics are often difficult to demonstrate, the various electronic components are represented by hydraulic equivalents. Static Electricity. One cannot see with the naked eye the energy flowing through a wire or the voltage of a battery sitting on a table. If the single elements represented are the only resistances in the circuit, then essentially all the pressure or voltage will drop across these single elements. Electricity. In this analogy, the water system is showing only the flow of charges (you can think of them as electrons). Volts (or potential) = water pressure Amps (or amperes) = rate of flow Resistance (or impedance) = restriction of the hose and valves Watts = immediate quantity of water passing through the hose Watthour = Amount of water passing through the hose in one hour flow rate models current and water pressure models voltage) describe the limitations of the water analogy to electric … ELECTRIC CURRENT is the flow of charge. Voltage. Use it to introduce the concepts of voltage (pressure) and current (flow rate), but don't go too far with it. Since electric current is invisible and the processes in play in electronics are often difficult to demonstrate, the various electronic components are represented by hydraulic equivalents. The function of a ground wire in an electric circuit is in many ways analogous to the reservoir attached to the water circuit. Teacher Section – Water Analogy to Electric Circuits Behavioral Objectives: Upon completion of this lab a student should be able to: identify the electrical analogs to the water circuit components (e.g. HYDRAULIC ANALOGY | Interactive Free flash animation to understand the difference between voltage and current. Let’s compare it to something we know --- Water! An electric current is a flow of electrons through a conductor (like a copper wire). The electronic–hydraulic analogy is the most widely used analogy for "electron fluid" in a metal conductor. PLTW Gateway® Unit 4 – Lesson 4.1 – What is Electricity? You may click any component or any relationship to explore the the details of the analogy with a DC electric circuit. A battery takes in charge at low voltage, does work on it and ejects it at high voltage. Once the pipe is filled with water, the pump can circulate the water without further use of the reservoir, and if it were removed it would have no apparent effect on the water flow in the circuit. In the water circuit, the pressure P drives the water around the closed loop of pipe at a certain volume flowrate F. If the resistance to flow R is increased, then the volume flowrate decreases proportionately. Simulation | Physics and Chemistry by a Clear Learning in High School, Middle School, Upper School, Secondary School and Academy. A common technique to solidify understanding is to learn the hydraulics analogy of electricity, which is arguably easier to visualize than electricity itself. At a power plant, charge can be drawn from the earth and the generation process does work on the charge to give it energy. The fact that essentially all the voltage drop appears across a resistor or an ordinary electrical appliance makes possible the operation of such appliances from an extension cord, or the operation of several appliances in parallel on a single circuit in your home. Water Analogy. Use the mouse cursor to control the Switch Position slider, and discover how a capacitor is charged and discharged with current from the battery. The movement of electrons through a conductor. 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 A Transportation Analogy for Electricity. These are the three basic building blocks required to manipulate and utilize electricity. Unlike the water pump in our river analogy, however, the power plant automatically adjusts to meet the demands of the consumer at the end of the wires. In a direct current (DC) electrical circuit, the voltage (V in volts) is an expression of the available energy per unit charge which drives the electric current (I in amperes) around a closed circuit. You see amp ratings on just about all electric devices. PCCL | jean pierre fournat The water hose analogy holds water (sorry I couldn't resist that pun) for the basic principles. Increasing the resistance (R in ohms) will proportionately decrease the current which may be driven through the circuit by the voltage. – Potential difference across two terminals in a circuit “across variable.”. ELECTRIC CIRCUIT Animation of the movement of electrons (the opposite of conventional current) in a simple electric circuit consisting of a battery, a switch, and a light bulb. A battery is analogous to a pump in a water circuit. Water flowing through pipes is pretty good mechanical system that is a lot like an electrical circuit. 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